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: Prokaryotes are single-celled organisms that lack a nucleus., Fact2: Prokaryotes are usually microscopic and bacteria is an example of a prokaryote., Question: What are single celled organisms that do not have a nucleus? (A) Most plants (B) nucleus (C) ferns (D) fossil fuels (E) bushes (F) Eukaryotes (G) leech (H) bacteria
[EX A]: H

[EX Q]: Fact1: Some parasites kill their host, but most do not., Fact2: Pathogens induce a disease in their host., Question: A parasites that can kill is called what? (A) bacteria (B) a carcinogen (C) A Greek letter (D) a pathogens (E) animals (F) an infection (G) insects (H) dangerous
[EX A]:
D