Given the task definition and input, reply with output. 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: Skin color is another polygenic trait., Fact2: Polygenic traits are controled by two or more genes., Question: What is controlled by two more more genes? (A) lizards (B) keratin (C) Flowers (D) flagella (E) enzymes (F) skin color (G) wild canines (H) insects
F