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: an animal requires stamina to succeed at physical activities, Fact2: Mustangs are noted for their stamina and endurance., Question: Mustangs are noted for abilities in what (A) physical activities (B) to move people (C) circulatory systems (D) the body's largest organ (E) sense organs (F) smell and taste (G) genetic diversity (H) Chemical energy
A