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 meter stick is used to measure distance, Fact2: Each person is placed at a different distance from the object., Question: what is used to measure between a person and an object (A) odometer (B) meter stick (C) radar (D) intelligence (E) Communication (F) speedometer (G) how they move (H) strength
Output:
B