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: Consider Input: Fact1: rocks interacting with wind over long periods of time causes weathering, Fact2: On Earth, rocks are weathered by wind and water, creating soil and sand., Question: What causes rocks to weather? (A) seasons (B) force (C) erosion (D) storms (E) water (F) heat (G) lightning (H) gas

Output: E


Input: Consider Input: Fact1: Some viruses can cause cancer., Fact2: Cancer is an example of a mutation in cells., Question: What can mutate cells? (A) Allergies (B) water (C) fruits (D) flow of electrons (E) vegetables (F) harmful substances (G) rays or beams (H) some viruses

Output: H


Input: Consider Input: Fact1: insulated material can be used for keeping warm, Fact2: Snow is an excellent insulating material., Question: what can be used for keeping warm? (A) wings (B) fur (C) lipids (D) hats (E) hair (F) Limbs (G) snow (H) fibers


Output: G