Question

there are 2 types of carbohydrates simple and a nutrient b complicated c dense d complex

Explanation:

In the context of carbohydrates, the two main types are simple and complex. Option A (nutrient) is incorrect as carbohydrates are a type of nutrient, not a counterpart to simple. Option B (complicated) is not the correct term used in nutrition for carbohydrate types. Option C (dense) is also incorrect. So the correct term to pair with simple for carbohydrate types is complex.

Answer:

D. complex