Answer:
C. foods rich in carbohydrates
Step-by-step explanation:
For those who practice physical activity regularly carbohydrate is the most important nutrient in food. This is because this nutrient will be responsible for maximizing your pre-exercise stocks, providing energy during exercise and will also play a key role in the post exercise recovery period. From this we can say that if an athlete needs fast sources of energy before starting his race, he should eat carbohydrate foods.
Several studies in the literature suggest that an adequate carbohydrate intake in the diet improves performance during exercise, while an inadequate intake of this nutrient can lead to tiredness and fatigue.