Definition: 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: Organisms that live in marine biomes must be adapted to the salt in the water., Fact2: Sodium chloride or common salt is the chemical compound NaCl ., Question: Organisms living in marine biomes must be adapted to what in the water? (A) hydrochloric acid (B) toxic chemicals (C) It helps them survive (D) the environment (E) raising their temperature (F) nothing (G) Deposition. (H) chemical compound NaCl
Output:
H