You will be given a definition of a task first, then some input of the task.
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 nutrients to grow and heal, Fact2: Potassium is an essential nutrient for plants and animals., Question: What does potassium help an animal do? (A) Grow (B) lysing (C) Sleep (D) health (E) Eat (F) rest (G) growth (H) Die
Output:
A