Why is maintaining proper hydration and sleep important during a race weekend, and what practical strategies support it?

• A. It maintains cognitive function and reaction time; use hydration plans, regular sleep schedule, and caffeine strategy.
• B. Hydration and sleep have little impact; focus on training only.
• C. Hydration should be ignored and caffeine should be avoided.
• D. Sleep should be skipped to maximize practice time.

Answer: (A)