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: vein deposits of gold and silver are formed by igneous intrusion, Fact2: Intrusive igneous rocks account for sections of higher elevation., Question: vein deposits of gold and silver are formed where? (A) loose soil (B) aqueous solution (C) graptolites (D) tectonic plates coliding (E) higher elevations (F) mountain sources (G) flow of electrons (H) In sediment

Ex Output:
E


Ex Input:
Fact1: Behaviors that improve fitness increase through natural selection., Fact2: Fitness traits relate to an animal s ability to survive and reproduce., Question: behaviors increase through what that improve traits of animal's ability to survive (A) competition (B) hunting (C) biological diversity (D) the environment (E) eating (F) produce offspring (G) natural selection (H) grooming

Ex Output:
G


Ex Input:
Fact1: a graduated cylinder is used to measure volume of a liquid, Fact2: Liquids Liquids Liquids are the second form of matter., Question: Graduated cylinders are used to measure the volume of the second form of what? (A) barrel (B) rain (C) light (D) matter (E) Water (F) speed (G) solutes (H) sound

Ex Output:

D