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: 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: fossils are formed when layers of sediment cover the remains of organisms over time, Fact2: Plants and animals are organisms., Question: What forms when plants are covered in layers of sediment over time? (A) Conifers (B) watershred (C) fossils (D) H2O (E) Echinoids (F) bubbles (G) loose soil (H) bones
[A]: C

[Q]: Fact1: exercise has a positive impact on a human 's health, Fact2: Sports is a good form of exercise., Question: what have a positive impact on a human's health? (A) sweating (B) nutrients (C) tuna (D) animals (E) hormones (F) food (G) clams (H) sports
[A]:
H