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").

Fact1: if gas is heated then that gas will expand, Fact2: An increase in temperature causes a gas to expand., Question: what affects a gas? (A) electricity (B) kinetic energy (C) temperature (D) Evaporation (E) salinity (F) Pollution (G) wind (H) magnetism
C

Fact1: eyes are used for seeing by animals by sensing light, Fact2: Goats are four legged animals., Question: what uses eyes for seeing by sensing light? (A) pigeons (B) goats (C) potatoes (D) tigers (E) plants (F) h2o (G) humans (H) bears
B

Fact1: harming an animal species causes that animal 's population to decrease, Fact2: If mortality is greater, then the population decreases., Question: what can cause a population decline? (A) wind (B) magma (C) bacteria (D) influenza (E) mortality (F) a pathogens (G) reproduction (H) parasites

E