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").

Ex Input:
Fact1: Migration is a type of movement that changes population size., Fact2: Predatory animals migrate with the game animals., Question: When game animals move elsewhere, what else does? (A) relocation (B) prey animals (C) predatory animals (D) migratory birds (E) An object is seen (F) migrants (G) refract or absorb. (H) barks and snarls

Ex Output:
C


Ex Input:
Fact1: being burried under soil and mud changes peat into coal through extreme heat and pressure in a swamp over a long period of time, Fact2: Well, a swamp is a type of wetland., Question: where does being buried under soil and mud change peat into coal through extreme heat and pressure over a long period of time? (A) watershed (B) alluvial (C) wetland (D) deltas (E) erosion (F) houses (G) earth (H) lakes

Ex Output:
C


Ex Input:
Fact1: a doorbell converts electrical energy into sound, Fact2: Perception of sound Sound is a wave., Question: What is created when a doorbell is pressed? (A) an object (B) particles (C) heat (D) energy (E) a wave (F) courtship (G) aura (H) colors

Ex Output:

E