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 plants require water for survival, Fact2: Water contains hydrogen and oxygen., Question: What do plants require for their survival? (A) Light (B) Proteins (C) Energy. (D) salinity (E) hydrogen (F) nutrients (G) sunlight (H) food
Example Output: E

Example Input: Fact1: if an organism becomes too hot then that organism may die, Fact2: Dehydration in the hot sun is a constant danger., Question: What can happen if an organism is dehydrated? (A) it burns (B) thirst (C) anemia (D) it floats (E) it dies (F) drying out (G) Rise (H) it thrives
Example Output: E

Example Input: Fact1: a gasoline lawn mower converts gasoline into motion, Fact2: Gasoline is a motor fuel only., Question: What do lawn mowers use? (A) energy (B) two (C) motors (D) computers (E) engines (F) Energy. (G) grass (H) dirt
Example Output:
C