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").

Ex Input:
Fact1: Adult worms go through a major transformation to develop reproductive organs., Fact2: An enlarged cummerbund-like band near the worm's head holds the reproductive organs., Question: What grows a cumberbund-like band around itself in adulthood? (A) legumes (B) Bats (C) mammals (D) bamboo (E) swea (F) worms (G) fungi (H) bushes

Ex Output:
F


Ex Input:
Fact1: skin is used for protecting the body from harmful substances, Fact2: Skin is the body's largest organ., Question: What can protect the body from harmful substances? (A) the body's largest organ (B) layers of fat (C) Electric devices (D) bones (E) sunburns (F) hard outer covering (G) deoxyribonucleic acid (H) muscle

Ex Output:
A


Ex Input:
Fact1: Minerals are chemical elements that are essential for body processes., Fact2: Water contains dissolved solids, all kinds of minerals., Question: Chemical elements that are essential to body processes can be found dissolved in what? (A) rivers (B) Petroleum (C) soil (D) Water (E) Hydrochloric acid (F) Rocks (G) Mercury (H) salts

Ex Output:

D