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: carpooling decreases the amount of cars used to travel to a place, Fact2: Carpooling cuts down on congestion and pollution., Question: What decreases when we decrease the amount of cars traveling to one place? (A) Temperature (B) Heart rate (C) Climate change (D) Pollution (E) Clean air (F) forces (G) Burning fossil fuels (H) gene flow
Example Output: D

Example Input: Fact1: Molecules of DNA are encoded with instructions that tell cells what to do., Fact2: Genes, made of DNA, carry the instructions for building proteins., Question: what do genes carry? (A) pollen (B) Energy (C) calories (D) instructions (E) Chemical energy (F) fat (G) acid (H) colors
Example Output: D

Example Input: Fact1: a tape measure is used to measure length, Fact2: Lengths A length is a measure of distance., Question: What does a tape measure do? (A) observe appearance (B) measure weight (C) measure density (D) measure distance (E) focusing a lens (F) objects that have mass (G) lowered energy cost (H) duplicate itself
Example Output:
D