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: a plant requires sunlight for photosynthesis, Fact2: Photosynthesis is the process of making food., Question: What do plants require to make food? (A) nutrients (B) sunlight (C) photons (D) Energy. (E) Light (F) Proteins (G) power (H) heat energy

Ex Output:
B


Ex Input:
Fact1: Tunicates reproduce sexually., Fact2: Bulbs are classifies as tunicate or non-tunicate., Question: How many ways can a bulb reproduce? (A) LEDs (B) Two (C) Many (D) wind (E) well (F) 12 (G) bent (H) tube

Ex Output:
B


Ex Input:
Fact1: heating an egg causes a chemical reaction in the egg, Fact2: High heat causes the protein in eggs to become tough and rubbery., Question: What in an egg causes protein to become rough and rubbery? (A) layers of fat (B) stamina (C) coded genes (D) lining (E) Converted sugar (F) chemical reaction (G) shell (H) Chemical energy

Ex Output:

F