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").

Example Input: Fact1: a mirror is used for reflecting light, Fact2: Light seems to travel in rays or beams., Question: what can a mirror be used to reflect? (A) noble gases (B) air particles (C) glass (D) focusing a lens (E) rays or beams (F) photons (G) sun's heat (H) an electron lens
Example Output: E

Example Input: Fact1: Insulin helps cells take up glucose from the blood., Fact2: Insulin made by a person's own pancreas is endogenous insulin., Question: what type of compounds produced by a person's pancreas help cells take up compounds (A) Energy (B) natural (C) mineral (D) endogenous (E) Break down food (F) it needs them (G) sweat glands (H) Energy.
Example Output: D

Example Input: Fact1: Plants live just about everywhere on Earth., Fact2: All plants live and grow by photosynthesis., Question: Photosynthesis can be found (A) only in rain forests (B) Direct sunlight. (C) Transfers energy (D) our nearest star (E) flow of electrons (F) just about everywhere on Earth (G) only in tropical climates (H) in young plants
Example Output:
F