Definition: You are given a question on nutrition. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: What nutritional strategies will not improve performance during prolonged endurance type exercise?

(A)Carbohydrate loading (B)Tapering (C)The classic glycogen loading regime (D)Exogenous carbohydrate ingestion during exercise

C