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: glass cause refraction of light, Fact2: Refraction Refraction is the bending of light rays., Question: Glass causes the _ of light (A) intensification (B) bending (C) photons (D) a wave (E) Pollution (F) blocking (G) heat (H) amplification
[EX A]: B

[EX Q]: Fact1: electricity is used as an energy source by electrical devices, Fact2: Electrical fields result from electrical devices and televisions., Question: What is used as an energy source by television? (A) electricity (B) light (C) our nearest star (D) air (E) energy (F) satellites (G) photons (H) rocks
[EX A]: A

[EX Q]: Fact1: Chloroplasts are organelles that are found in the cells of plants and algae., Fact2: Chloroplasts Chloroplasts serve as the site of photosynthesis., Question: What occurs in organelles that are found in the cells of plants and algae? (A) oxidation reaction (B) flow of electrons (C) glucose (D) cell membrane (E) refraction of light (F) photosynthesis (G) root (H) stem
[EX A]:
F