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: fog is formed by water vapor condensing in the air, Fact2: But suddenly a fog, a haze, began to form., Question: What is formed when water vapor condenses in the air? (A) NaCl (B) a wave (C) ice (D) rain (E) clear skies (F) sweat (G) haze (H) rocks
Output:
G