Instructions: 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").
Input: Fact1: Hermit crabs use the shells of dead snails for homes., Fact2: Most crabs are scavengers, such as the typical hermit crab ., Question: Crabs scavanage and uses dead snail shells for what? (A) RNA (B) homes (C) making holes (D) damage (E) a hosta (F) Protein (G) matter (H) building a nest
Output:
B