Definition: 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: Skin color is another polygenic trait., Fact2: Phenotypic expression of polygenic traits varies over a wide range., Question: What is a phenotypic expression? (A) hyper responses (B) Rolex (C) skin color (D) tiny hairs (E) getting excited (F) Flowers (G) a hosta (H) indoor traits
Output:
C