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: Mollusks reproduce sexually., Fact2: Mollusks are the dominant invertebrate., Question: what reproduces sexually? (A) A compound that donates proton (B) spread flower seeds (C) They have webbed feet (D) Plant reproduction (E) By wind and rain (F) passenger pigeons (G) the dominant invertebrate (H) Something found in San Francisco
Example Output: G

Example Input: Fact1: if a living thing becomes too cold then that living thing will die, Fact2: Plants and animals live, die, and decompose only to be recycled again., Question: If a thing becomes too cold then it will die and do what? (A) direct damage to the lungs (B) decreases its bodily water (C) If they can no longer get food (D) massive damage (E) remove lungs (F) change species (G) decompose and be recycled (H) recycle plastics
Example Output: G

Example Input: Fact1: mechanical weathering is when rocks are broken down by mechanical means, Fact2: Pysical weathering is the mechanical breakdown of rocks., Question: What is when rocks are broken down? (A) roof weathering (B) Plant growth is reduced (C) brick weathering (D) Physical weathering (E) remains of prehistoric life (F) at or near the margins (G) home weathering (H) major threat to health
Example Output:
D