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: global warming is when worldwide temperature increases, Fact2: Global warming is caused by carbon dioxide trapped in the atmosphere., Question: What does carbon dioxide cause? (A) skateboards (B) Greenhouse gases (C) Worldwide temperature increase (D) major threat to health (E) direct damage to the lungs (F) running (G) a lot of human deaths (H) Temperature decrease
[EX A]: C

[EX Q]: Fact1: if an object is made of a material then that object has the properties of that material, Fact2: Headings include Materials Research, Materials, Ceramic Materials, Composite Materials., Question: if an object is what of a Ceramic then that object has the properties of Ceramic (A) edible (B) combined (C) heat (D) part (E) Joules (F) attached (G) made (H) unique
[EX A]: G

[EX Q]: Fact1: Mating is generally preceded by courtship., Fact2: Courtship is similar across species., Question: What is generally similar across species? (A) tail fins (B) our star (C) the eyes (D) vision (E) mating (F) Flowers (G) bushes (H) alpacas
[EX A]:
E