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: Growth is faster during infancy than it is during puberty., Fact2: Humans experience their fastest growth rate during fetal development and early infancy., Question: Which period beats puberty for speed of growth? (A) melanin amount (B) fetal development (C) menopause (D) budding (E) several genes (F) mild heating process (G) Seconds and minutes (H) It's inherited from genes
[A]: B

[Q]: Fact1: an egg requires warmth to survive, Fact2: Inside the egg, the developing rattlesnake is nourished by the yolk of the egg., Question: a developing rattlesnake requires what to survive (A) warmth (B) companionship (C) nutrients (D) shade (E) desert (F) food (G) energy (H) air
[A]: A

[Q]: Fact1: a doorbell converts electrical energy into sound, Fact2: When the sound waves hit the eardrum in the middle ear, the eardrum starts to vibrate., Question: When a doorbell rings, what part of the body vibrates? (A) organ (B) legs (C) nerves (D) arm (E) cells (F) eye (G) eardrum (H) Limbs
[A]:
G