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: Insulin helps cells take up glucose from the blood., Fact2: Insulin produced by the pancreas is endogenous insulin., Question: What does the pancreas help cells take up from the blood? (A) bacteria (B) store (C) Energy. (D) food (E) Energy (F) glucose (G) cells (H) blood

Ex Output:
F

Ex Input:
Fact1: Hormones are chemical messengers that control many body functions., Fact2: Growth hormone is in many ways an anti-aging hormone., Question: What controls anti-aging? (A) A computer (B) air (C) chemical messengers (D) ice (E) an electric stove (F) Electrical energy (G) water (H) Chemical energy

Ex Output:
C

Ex Input:
Fact1: a thermal insulator slows the transfer of heat, Fact2: Ice is a good thermal insulator., Question: What slows the transfer of heat? (A) moss (B) coat (C) CFCs (D) UV (E) foil (F) fur (G) skin (H) ice

Ex Output:
H