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: better senses have a positive impact on an animal 's survival, Fact2: All dogs are animals ., Question: what can have a positive impact on survival with better senses? (A) pugs (B) deer (C) pigs (D) mice (E) dog (F) cats (G) bird (H) cows
[EX A]: E

[EX Q]: Fact1: Soil can be depleted of nutrients., Fact2: Dirt is really misplaced soil., Question: When gardening what can be depleted of nutrients? (A) fertilizer (B) bacteria (C) the plant (D) coal (E) pine (F) the dirt (G) Acids (H) water
[EX A]: F

[EX Q]: Fact1: vein deposits of gold and silver are formed by igneous intrusion, Fact2: Gold and silver are valuable products., Question: What does igneous intrusion create? (A) adding heat (B) loose soil (C) heat energy (D) Valuable products (E) hydrogen and oxygen (F) earthquakes (G) graptolites (H) objects that have mass
[EX A]:
D