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: 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: Cancer cells divide more often than normal cells, and grow out of control., Fact2: Cancer cells are abnormal and divide without control or order., Question: what kind of cells are abnormal? (A) nuclear (B) kidney (C) cell wall (D) dangerous (E) white (F) parasites (G) negative (H) cancer

Ex Output:
H


Ex Input:
Fact1: Carbon may be stored in sedimentary rock for millions of years., Fact2: Carbon is an essential element for almost all plant and animal life., Question: What does almost all plant and animal life depend on? (A) desert (B) disease (C) biological diversity (D) Sedimentary rock (E) absorb light energy (F) sunlight (G) ghosts (H) Chlorophyll

Ex Output:

D