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").

Example Input: Fact1: the Himalayas were formed by rock folding, Fact2: Movements in the earth's crust have folded and cracked the older rocks., Question: the Himalayas were formed from older what (A) soils (B) plates (C) rivers (D) rock (E) eras (F) meadows (G) dirt (H) plains
Example Output: D

Example Input: Fact1: telephones are used for communication by two people by transmitting sound, Fact2: And the sound of their voice becomes important as well., Question: What is transmitted with telephones? (A) voice (B) copper (C) waves (D) smell (E) cancer (F) energy (G) HIV (H) power
Example Output: A

Example Input: Fact1: Sex hormones are chemical messengers that control sexual development and reproduction., Fact2: Estrogens are female sex hormones., Question: Which chemical controls sexual development and reproduction in females? (A) acetic acid (B) Hemoglobin (C) Fructose (D) barnacles (E) animals (F) Estrogen (G) Pesticides (H) Baby spray
Example Output:
F