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: the Earth being tilted on its rotating axis causes seasons, Fact2: Weather changes from season to season., Question: Which natural occurrence comes from Earth being tilted on a rotating axis? (A) Changing weather (B) graptolites (C) permineralization (D) Movement (E) subtropical (F) dry and hot (G) swamp vegetation (H) global warming
[A]: A


[Q]: Fact1: Mating is generally preceded by courtship., Fact2: For example, a black rooster and a white hen mate, and the resulting offspring are gray., Question: What can result in offspring? (A) seeds (B) competition (C) courtship (D) travel (E) resistance (F) solitude (G) litter (H) reading
[A]: C


[Q]: Fact1: Lancelet larvae are free-swimming., Fact2: Lancelets are small fishlike animals with tapered bodies., Question: how do small fishlike animals with tapered bodies get around? (A) free-swimming (B) moving over land (C) heated by the sun (D) transportation (E) flying (F) gills (G) walking (H) melanin content
[A]:
A