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: a mirror is used for reflecting light, Fact2: Light seems to travel in rays or beams., Question: what can a mirror be used to reflect? (A) noble gases (B) air particles (C) glass (D) focusing a lens (E) rays or beams (F) photons (G) sun's heat (H) an electron lens
[EX A]: E

[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: an animal usually requires a warm body temperature for survival, Fact2: Dormancy is an adaptation that improves the chances of surviving until warm temperatures return., Question: Animals use what to improve chances of surviving? (A) Glucose (B) Energy. (C) traits (D) energy (E) food (F) dormancy (G) gene flow (H) four limbs
[EX A]:
F