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: a vehicle is used for travel, Fact2: Trucks and cars are vehicles., Question: What are trucks and cars used for? (A) Pollution (B) Travel (C) food (D) damaging (E) Walking (F) safety (G) heating (H) Taking up space
Output:
B