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: Behaviors that improve fitness increase through natural selection., Fact2: Adaptation is the result of natural selection., Question: Behaviors that improve fitness increase through what? (A) kinetic energy (B) Animal survival (C) increases (D) hydration (E) Riding a bike (F) competition (G) adaptation (H) insulation
A:
G