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: heat can change the state of matter, Fact2: Matter exists in a solid, liquid or gas state and can change forms., Question: _ can change liquid to gas. (A) magnetism (B) cycles (C) energy (D) vapors (E) condensation (F) gravity (G) thirst (H) Heat
Example Output: H

Example Input: Fact1: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Harbor seals, like sea lions, have evolved to utilize a layer of fat called blubber., Question: How do sea lions keep warm? (A) protected (B) warm (C) Swimming fast (D) Sleeping (E) hydration (F) Blubber (G) four limbs (H) Eating a lot of fish
Example Output: F

Example Input: Fact1: the gravitational pull of the Moon on Earth 's oceans causes the tides, Fact2: Tides A tide is vertical movement of water., Question: The moon's gravitational pull on Earth 's oceans causes the vertical movement of what? (A) oceans (B) rivers (C) matter (D) waves (E) deserts (F) asteroids (G) the sun (H) water
Example Output:
H