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: conserving water can be used for survival in a dry environment, Fact2: Most of the southwest is semi desert and very dry., Question: Where is conserving water useful for survival? (A) abalone (B) desert (C) marshland (D) cactuses (E) earth (F) wetlands (G) river bank (H) watershed
A:
B