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: an animal requires stamina to succeed at physical activities, Fact2: Sheep hunting is a physically demanding hunt., Question: What activity would an animal need stamina for? (A) courtship (B) Movement (C) Incubating Eggs (D) four limbs (E) growth (F) Hunting (G) Hibernation (H) Using camoflauge

Ex Output:
F

Ex Input:
Fact1: Roundworms may be free-living or parasitic., Fact2: Roundworms make up the roundworm phylum, Nematoda., Question: What can the phylum Nematoda be? (A) dangerous (B) parasitic (C) horses (D) meiosis (E) more abundant (F) graptolites (G) homogenous (H) phytoplankton

Ex Output:
B

Ex Input:
Fact1: the emission of sulfur dioxide causes acid rain, Fact2: Most sulfur dioxide comes from the combustion of oil and coal., Question: What causes acid rain? (A) burn (B) oil (C) coal (D) lung (E) DDT (F) tar (G) Cars (H) wind

Ex Output:
B