While researching a topic, a student has taken the following notes: Brussels sprouts are vegetables that contain ascorbic acid, an essential nutrient for humans.
- Cranberries are fruits that contain ascorbic acid.
- There is 80 milligrams (mg) of ascorbic acid per every 100 grams (g) of Brussels sprouts.
- There is 13 mg of ascorbic acid per every 100 g of cranberries.
- Humans cannot make ascorbic acid in their bodies, so they must get it from foods, including fruits and vegetables.
- Ascorbic acid is also known as vitamin C.
The student wants to refute a claim that cranberries are a better source of vitamin C than Brussels sprouts are. Which choice most effectively uses relevant information from the notes to accomplish this goal?
Explanation
Answer: 3) With 80 mg of vitamin C per every 100 g, Brussels sprouts are actually a better source of vitamin C than cranberries, which contain only 13 mg per every 100 g.
Goal: Refute the claim that cranberries are better source of vitamin C.
Why? To refute, you must provide counter-evidence. Choice 3 shows Brussels sprouts have 80 mg vs. cranberries' 13 mg per 100g.
Traps:
- A) Both contain vitamin C → doesn't refute
- B) Only about Brussels sprouts → doesn't compare
- D) About getting vitamin C → doesn't compare amounts