Given the task definition and input, reply with output. 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: sunlight and rain can cause a rainbow, Fact2: When white light hits a prism it is seen as the seven rainbow colors., Question: Sunlight and rain combine to form what? (A) Something that has seven colors (B) Something that dries the Earth (C) rivers and streams (D) global ecosystems (E) Something that has a tail (F) Something that is wet (G) deoxyribonucleic acid (H) roots and shoots
A