Q: 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").
Fact1: Muscles can only contract., Fact2: Smooth muscles are involuntary muscles., Question: Something that can be described as what can only contract? (A) Smooth (B) the skin (C) Rough (D) strong (E) Sweet (F) Loud (G) complex (H) alveoli
A:
A