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: having food has a positive impact on an organism 's health, Fact2: Birds and animals eat such food ., Question: What generally has a positive impact on an organism's health? (A) stay warm (B) sex with multiple partners (C) smoking (D) exercise (E) nutrients (F) eating (G) Cooking (H) fasting
Example Output: F

Example Input: Fact1: Echinoderms use pheromones to communicate with each other., Fact2: All echinoderms are deuterostomes ., Question: What use pheromones to communicate with each other? (A) passenger pigeons (B) honeybees (C) deuterostomes (D) Most plants (E) insects (F) animals (G) huddle together (H) orchids
Example Output: C

Example Input: Fact1: Marine species live mainly in shallow coastal waters., Fact2: Coastal waters teem with life., Question: Marine species live mainly in areas teeming with what? (A) dust (B) matter (C) growth (D) life (E) mammals (F) energy (G) waves (H) spiders
Example Output:
D