You will be given a definition of a task first, then some input of the task.
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: condensation causes clouds to form, Fact2: Rainy clouds cause rain, and excess water vapor from clouds is the basis of rainbows., Question: What can be caused by condensation? (A) rain (B) wind (C) gills (D) Gases (E) drought (F) heat (G) breeze (H) gas
Output:
A