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: electricity is used as an energy source by electrical devices, Fact2: Electrical fields result from electrical devices and televisions., Question: What is used as an energy source by television? (A) electricity (B) light (C) our nearest star (D) air (E) energy (F) satellites (G) photons (H) rocks
Example Output: A

Example Input: Fact1: DNA is found in chromosomes., Fact2: Chromosome Chromosome A chromosome is a grouping of coiled strands of DNA , containing many genes., Question: What comes in coiled strands? (A) hair (B) RNA (C) ovum (D) dogs (E) gene (F) poop (G) ice (H) DNA
Example Output: H

Example Input: Fact1: a greenhouse is used to protect plants by keeping them warm, Fact2: Temperatures go from warm to hot., Question: What is used to protect plants by keeping their temperature? (A) a white house (B) energy (C) an electric stove (D) a microwave (E) electricity (F) a thermometer (G) exoskeleton (H) a greenhouse
Example Output:
H