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: Balance is the ability to sense and maintain body position., Fact2: Balance is a proprioceptive function., Question: Proprioceptive functions sense and maintain what? (A) the sense of smell (B) sensory neurons (C) salt and water. (D) cellular respiration (E) body position (F) temperature (G) gasoline (H) kinetic energy
Output:
E