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: clouds are formed by water vapor rising into colder regions of the atmosphere and condensing, Fact2: Eventually, the drops fall out of the cloud in the form of rain., Question: What sometimes falls as rain? (A) Water vapor (B) Winter (C) trees (D) Metling snow (E) earth (F) soil (G) flooding (H) streams.
Output:
A