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: Cancer is a disease in which cells divide out of control., Fact2: Cancer is also caused by a mutation., Question: What can mutations lead to in which cells divide out of control? (A) Smoking (B) resistance (C) a disease (D) viruses (E) AIDS (F) bacteria (G) Leptospirosis (H) cigarettes

Ex Output:
C

Ex Input:
Fact1: information in an organism 's chromosomes cause genetic traits to be passed down to that organism 's offspring, Fact2: DNA, which contains our genetic code, is the basic building block of chromosomes., Question: DNA causes what to inherit genetic traits? (A) offspring (B) some mammals (C) ancestors (D) Nematoda (E) heterotrophs (F) animals (G) minerals (H) grandparents

Ex Output:
A

Ex Input:
Fact1: creating wood-free paper does not require cutting down trees, Fact2: Most uncoated freesheet paper is entirely free of mechanical wood pulp., Question: what type of paper does not require cutting down trees? (A) windpower operated machines (B) deoxyribonucleic acid (C) uncoated freesheet (D) slow and inefficient (E) objects that have mass (F) A solid geometric shape (G) barrel-shaped (H) It remains dormant

Ex Output:
C