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: Migrants typically travel long distances., Fact2: Migrant birds arrive., Question: What travels long distances? (A) humans (B) jets (C) rocks (D) birds (E) camels (F) cocoons (G) Light (H) eggs
[A]: D


[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: Organisms cluster around hydrothermal vents in the ocean floor., Fact2: Animals at underwater hydrothermal vents are unique., Question: What are organisms on the ocean floor? (A) conventional (B) common (C) unique (D) protected (E) parasites (F) tortoises (G) normal (H) bacteria
[A]:
C