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: an egg requires warmth to survive, Fact2: Oil provides heating for warmth and gasoline for transportation., Question: What does an egg require to survive? (A) sound (B) heat (C) energy (D) food (E) warm (F) Sun (G) freezing (H) movement
A:
B