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").
Input: Fact1: Most people can survive only a few days without water., Fact2: Most of the earth's water is liquid., Question: Most people can survive only a few days without what? (A) Nutrients (B) sodium (C) ice (D) a solute (E) food (F) liquid (G) sunlight (H) dessert
Output:
F