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: 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: pushing on the pedals of a bike cause that bike to move, Fact2: Schwinn bikes have carried many TWW'ers to the podium time and time again., Question: what moves by having the pedals pushed on? (A) organ (B) h2o (C) Schwinn (D) Nematoda (E) animals (F) athletes (G) clouds (H) kites

Ex Output:
C


Ex Input:
Fact1: Antigens are found on cancer cells and the cells of transplanted organs., Fact2: Antigens are proteins foreign to the body., Question: proteins foreign to the body can be found where? (A) in the lymph nodes (B) in nerve cells (C) in the kidneys (D) on cancer cells (E) critical organs (F) mouth of rivers (G) Earth orbiting the Sun (H) the skin

Ex Output:

D