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 Q]: Fact1: Insects may live in large colonies and have complex social behaviors., Fact2: Ants are social insects living in colonies., Question: which of the following are known to have complex social behaviors? (A) dogs (B) Wasps (C) tigers (D) Birds (E) toads (F) Tasmanian devils (G) koalas (H) Ants
[EX A]: H

[EX Q]: 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 A]: G

[EX Q]: Fact1: Organisms cluster around hydrothermal vents in the ocean floor., Fact2: Background Hot water vents form inside cracks in the ocean floor., Question: Organisms cluster around hot water inside cracks where? (A) loose soil (B) ocean floor (C) food and shelter (D) tectonic plates (E) the ground (F) allow growth (G) Absorb light (H) survive
[EX A]:
B