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 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
Example Output: B

Example Input: Fact1: Food consists of organic molecules that store energy in their chemical bonds., Fact2: If an molecule contains carbon, it is called organic., Question: What does food consist of? (A) mostly carbon (B) solid, liquid, gas (C) mostly arsenic (D) mostly hydrogen (E) Energy. (F) mostly nitrogen (G) glucose (H) Most plants
Example Output: A

Example Input: Fact1: looking at bright objects has a negative impact on the eyes, Fact2: Sunglasses help protect the eyes from glare off the river surfaces., Question: What can sunglasses protect against? (A) fissures of hot, acidic water (B) rays or beams (C) Looking at sunglasses (D) Looking at bright objects (E) Looking at dark objects (F) Looking at newspapers (G) enormous damage to homes (H) Light passing through water
Example Output:
D