Q: 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: Most people can survive only a few days without water., Fact2: Water combines hydrogen and oxygen., Question: Most people can survive only a few days without a combination of what? (A) dehydration (B) hydrogen and oxygen (C) food and shelter (D) hydrogen chloride and water (E) scarce resources (F) solid, liquid, gas (G) lemonade and ice water (H) watercolor paints
A:
B