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: Climate is generally described in terms of temperature and moisture., Fact2: Humidity is moisture in the air., Question: Climate is generally described in terms of temperature and what else? (A) Ecology (B) Thermometer (C) calibrated (D) key element (E) Storms (F) Humidity (G) SI units (H) warmer air
Example Output: F

Example Input: Fact1: threatening behavior by predators causes a porcupine to extend its quills, Fact2: Puffers are smooth skinned while Porcupines have the characteristic spines or quills., Question: What does a porcupine do with its spines when it's threatened? (A) killing insects (B) Shoot them (C) kill them (D) protect them (E) Extend them (F) Shed them (G) Retract them (H) behave
Example Output: E

Example Input: Fact1: a plants require water for survival, Fact2: Life-long learning is no longer a luxury for the few, but a survival skill for all., Question: Plants require what for life-long learning? (A) Light (B) protein (C) Energy. (D) gametes (E) genes (F) water (G) energy (H) oxygen
Example Output:
F