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").

Fact1: Mammals conserve body heat with their hair or fur., Fact2: Bats Bats are mammals with wings., Question: What conserves body heat with their fur? (A) hawks (B) shrews (C) flying fish (D) pigs (E) humans (F) dogs (G) crocodiles (H) bats
H