Q: 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: preventing the transfer of heat from an organims 's body causes that organism to keep warm, Fact2: Leaves keep animals warm., Question: What might animals use leaves for? (A) water conservation (B) To make a path. (C) To burn for warmth. (D) storing water (E) To keep their body heat. (F) Help plants grow (G) sunlight energy (H) To fertilize gardens.
A:
E