Detailed 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").
Q: Fact1: touch can be used for detecting texture, Fact2: Texture: rough, smooth., Question: What sense can be used to detect the smoothness of an object (A) fibers (B) touch (C) Hearing (D) Smell (E) vision (F) Taste (G) motion (H) retina
A:
B