The mobile market is large _________ people in the world use a mobile phone, equating to over _______ people on mobile phones.

Question

BlackTom AI · Accepted Answer

Fraction-of-population statements must be numerically consistent with the absolute number they claim. Use the implied world population (7 billion) to test each choice: multiply the fraction by the population and compare to the stated absolute number.

Relevant concepts:
- A fraction like "1 of 7" means (1/7) × total population.
- The absolute number given must equal that computed product.
- Absolute counts cannot exceed total population.

Step-by-step checks and calculations:
1) Option A: "1 of 7; 7 Billion"
   - Compute (1/7) × 7 billion = 1 billion.
   - Option A’s absolute claim is 7 billion, which does not equal 1 billion. So A is incorrect.

2) Option B: "2 of 7; 15 Billion"
   - Compute (2/7) × 7 billion ≈ 2 billion.
   - Option B’s absolute claim is 15 billion, which is not only unequal to ≈2 billion but also exceeds the entire world population (7 billion). Impossible, so B is incorrect.

3) Option C: "5 of 7; 7 Billion"
   - Compute (5/7) × 7 billion = 5 billion.
   - Option C’s absolute claim is 7 billion, which does not equal 5 billion. So C is incorrect.

Why the correct answer is D:
- None of the three fraction–absolute pairs are internally consistent. A and C give an absolute number (7 billion) that does not match the product of the fraction and population; B gives an absolute number impossible relative to the population. Therefore none of A–C correctly fill both blanks.

Brief note on what a consistent choice would look like:
- For a 7 billion population, consistent pairs would be e.g., "1 of 7; 1 billion" or "5 of 7; 5 billion" or "2 of 7; ~2 billion."

Conclusion:
Because all provided fraction/number pairs (A, B, C) are inconsistent or impossible, the correct selection is D. None of the above. This matches the given answer: D. None of the above.

The mobile market is large ___ people in the world use a mobile phone, equating to over _ people on mobile phones.单项选择题

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The mobile market is large _________ people in the world use a mobile phone, equating to over _______ people on mobile phones.单项选择题