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: a battery converts chemical energy into electrical energy, Fact2: Electrical energy can be converted into kinetic energy and heat energy by an electric motor., Question: What can convert chemical energy into kinetic energy (A) a magnet (B) a vacuum (C) a windmill (D) a battery (E) arteries (F) barnacles (G) animals (H) engines
[EX A]: D

[EX Q]: Fact1: the emission of sulfur dioxide causes acid rain, Fact2: The sulfur dioxide is converted into sulfuric acid., Question: what causes acid rain? (A) gases (B) rainfall (C) Pollution (D) fossil fuels (E) emissions (F) vehicles (G) burning (H) wind
[EX A]: E

[EX Q]: Fact1: Absorption of nutrients occurs mainly in the small intestine., Fact2: Food is the best source of nutrients for the body., Question: Where is the main place where food absorption occurs? (A) sphincter (B) the environment (C) ecosystems (D) occurs over a wide range (E) extracellular (F) blood plasma (G) small intestines (H) Microscopic vessels.
[EX A]:
G