In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").
Q: Fact1: Sweating reduces body heat., Fact2: High body heat is necessary for maximum predatory activity., Question: What reduces heat necessary for maximum predatory activity? (A) Evaporation (B) energy usage (C) warming (D) sweating (E) fur and fat (F) eating (G) tail fins (H) drinking
A:
D