Which food would be the best source of Vitamin C?

Question

BlackTom AI · Accepted Answer

Red bell peppers are one of the richest common food sources of vitamin C, so option b is correct.

1) Relevant knowledge points and concepts
- Vitamin C (ascorbic acid) is a water‑soluble vitamin found primarily in fruits and vegetables. It functions as an antioxidant and is required for collagen synthesis and immune function.
- Different foods contain widely varying amounts of vitamin C per 100 g serving; comparing these amounts determines the “best” source among choices.

2) Step‑by‑step reasoning
- Identify vitamin C content for each option (typical values per 100 g, from standard nutrition data):
  - Red pepper (raw bell pepper): ≈ 120–130 mg vitamin C per 100 g.
  - Grapefruit (raw): ≈ 30–40 mg vitamin C per 100 g.
  - Olive oil: negligible vitamin C (virtually 0 mg per 100 g).
  - Poultry (cooked chicken): essentially 0–1 mg vitamin C per 100 g.
- Compare numeric values: 120–130 mg (red pepper) is about 3–4 times higher than grapefruit’s ~30–40 mg and vastly greater than olive oil or poultry.

3) Intermediate steps / calculations
- Example comparison: take median values: red pepper 125 mg/100 g vs grapefruit 35 mg/100 g → 125 ÷ 35 ≈ 3.6 times more vitamin C in red pepper per equal weight.

4) Why the correct answer is correct
- Red pepper supplies the highest amount of vitamin C per serving among the options given, making it the best single source for this vitamin in the list.

5) Why other options are incorrect
- Grapefruit (c) does contain vitamin C but considerably less than red pepper per 100 g.
- Olive oil (a) is a fat and contains virtually no vitamin C.
- Poultry (d) is an animal protein and provides negligible vitamin C.

6) Conclusion
- Based on typical vitamin C content values and direct comparison, the best source of vitamin C among the choices is b. Red Pepper, which matches the provided answer.

Which food would be the best source of Vitamin C?Single choice

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