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: Glucose is used for energy by the cells of most organisms., Fact2: Glucose metabolism relates to how cells use or store glucose., Question: what do cells do with glucose? (A) live (B) grow (C) reacts (D) energy. (E) survive (F) store (G) sleep (H) move

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: Roots grow in length and width from primary and secondary meristem., Fact2: Kids see the underground root systems of trees and then an aerial view of plants in the city., Question: What grow in width and length.? (A) crocodiles (B) sedimentary rocks (C) vegetation (D) remains of prehistoric life (E) swamp vegetation (F) shrub beds (G) underground systems (H) loose dirt

Ex Output:
G