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: Playing is just one of many ways that mammals and other animals learn how to behave., Fact2: People behave as a result of a complex interaction., Question: What is a complex interaction shared by mammals and other animals? (A) seeing (B) firm hugs (C) food (D) staring (E) power (F) blinking (G) sound (H) playing
Output:
H