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: pushing on the pedals of a bike cause that bike to move, Fact2: Bike shoes allow a rider to pull during the whole pedal stroke., Question: pushing with strokes on a bike cause that bike to what (A) Lift (B) bend (C) bounce (D) power (E) move (F) break (G) motion (H) speed

Ex Output:
E


Ex Input:
Fact1: seeing requires light, Fact2: Sight is the mere ability to see, and the eye's responses to light shining into it., Question: What do eyes require? (A) a form of oxygen (B) Light shining into it (C) Exposure to oxygen and water (D) A dark environment (E) Contact lenses (F) melanin amount (G) tissue made of chondrocytes (H) Glasses

Ex Output:
B


Ex Input:
Fact1: Dilation occurs when cell walls relax., Fact2: When oxygen level decreases, dilatation of the blood vessels occurs., Question: What causes cell walls to relax? (A) exercise (B) sweating (C) adding heat (D) Energy (E) dilation (F) heat or cold (G) heat (H) Dehydration

Ex Output:

E