Question at position 9 If the missing lines are filled in correctly, the program should continuously ask the user for their student ID until they enter the correct one. Below is an example output of the program, where bolded text is input to the program: Student ID: 725120281Did not match.Student ID: 291854102Did not match.Student ID: 123456789Student ID matches! [table]
1 student_id = 1234567892 attempt = int(input('Student ID: '))3 4 while attempt != student_id:5 # ( code WILL go inside WHILE )6 # …7 # …8 9 print('Student ID matches!')
[/table] Which of the following options is the correct missing code?5 attempt = int(input('Student ID: '))6 print('Did not match.')5 attempt = int(input('Student ID: '))6 if attempt != student_id:7 print('Did not match.')5 print('Did not match.')6 if attempt == student_id:7 break5 print('Did not match.')6 attempt = int(input('Student ID: '))Clear my selection

Question

Question at position 9 If the missing lines are filled in correctly, the program should continuously ask the user for their student ID until they enter the correct one. Below is an example output of the program, where bolded text is input to the program: Student ID: 725120281Did not match.Student ID: 291854102Did not match.Student ID: 123456789Student ID matches! [table]
1  student_id = 1234567892 attempt = int(input('Student ID: '))3 4  while attempt != student_id:5 # ( code WILL go inside WHILE )6 # …7 # …8 9  print('Student ID matches!')
[/table] Which of the following options is the correct missing code?5 attempt = int(input('Student ID: '))6 print('Did not match.')5 attempt = int(input('Student ID: '))6 if attempt != student_id:7 print('Did not match.')5 print('Did not match.')6 if attempt == student_id:7 break5 print('Did not match.')6 attempt = int(input('Student ID: '))Clear my selection

BlackTom AI · Accepted Answer

Because the while condition is while attempt != student_id, each loop iteration must both notify the user that the previous attempt failed and then read a new attempt so the loop can progress. The correct body prints "Did not match." first and then prompts for another Student ID.

1) Relevant concepts
- While loop: executes its body repeatedly as long as the condition is true.
- Loop progress: to avoid an infinite loop, the loop body must modify the value tested in the condition (here, attempt).
- Input/output order matters for matching the example interaction.

2) Step-by-step reasoning
- Initial setup: student_id = 123456789 and attempt = int(input('Student ID: ')) reads the first attempt.
- Enter while attempt != student_id: if the user’s attempt is wrong, execute the body.
- The body should (a) print "Did not match." to match the example feedback for that wrong attempt, and (b) ask for another input so attempt is updated for the next loop evaluation.
- When a subsequent input equals student_id, the while condition becomes false and the loop exits to execute print('Student ID matches!').

3) Intermediate steps / iteration trace (with example inputs)
- attempt = 725120281 → condition True → print "Did not match." → attempt = int(input(...)) reads 291854102
- attempt = 291854102 → condition True → print "Did not match." → attempt = int(input(...)) reads 123456789
- attempt = 123456789 → condition False → exit loop → print "Student ID matches!"

4) Why the correct answer is correct
- The sequence print('Did not match.') then attempt = int(input('Student ID: ')) matches the sample interaction: feedback for the previous wrong attempt is shown before prompting the next attempt. It also updates attempt so the loop can terminate when the correct ID is entered.

5) Why other options are incorrect
- Option A (prompt then print): would prompt for another ID immediately without first printing "Did not match." for the previous attempt, so the ordering doesn't match the example.
- Option B (prompt then conditional print): similarly asks for a new input before printing feedback about the prior attempt; output ordering differs from the example.
- Option C (print then if attempt == student_id: break): never updates attempt inside the loop, so the loop can become infinite because attempt is not changed; the break condition is unreachable while the loop condition holds.

6) Conclusion
The correct loop body is:
5      print('Did not match.')
6      attempt = int(input('Student ID: '))
This matches the provided answer.

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