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: having food has a positive impact on an organism 's health, Fact2: Birds and animals eat such food ., Question: What generally has a positive impact on an organism's health? (A) stay warm (B) sex with multiple partners (C) smoking (D) exercise (E) nutrients (F) eating (G) Cooking (H) fasting
[EX A]: F

[EX Q]: Fact1: tidal energy can be used to produce electricity, Fact2: Tidal caves are formed by the energy of the rising and falling tides., Question: what can produce electricity? (A) rivers (B) animal transport (C) tidal caves (D) Nematoda (E) rays or beams (F) animals (G) cactuses (H) photons
[EX A]: C

[EX Q]: Fact1: Some touch receptors sense differences in temperature or pain., Fact2: If the skin is painful, seek medical attention., Question: What senses differences when you hurt your skin? (A) touch receptors (B) sensory neurons (C) eyes (D) Veins and arteries. (E) matter vibrating (F) light receptors (G) smell (H) an organism's body
[EX A]:
A