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").
Q: Fact1: a cactus stem is used for storing water, Fact2: Cactuses store water, serving as their own reservoirs and surviving long droughts., Question: How does a cactus survive droughts? (A) It becomes dormant (B) It helps them survive (C) roots and shoots (D) high humidity (E) circulatory systems (F) roots to grow (G) Holding water in the stem (H) dormant state
A:
G