You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.

Q: Which plant is grown for food?  
 (A) Rice (B) Tobacco (C) Orchid (D) Cotton

A: A
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Q: Which is an example of an organism that has been selectively bred for a particular genetic trait?  
 (A) cats that eat mice (B) cows that graze on grass (C) pigs that form large herds (D) chickens that lay large eggs

A: D
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Q: A student is writing a report on volcanoes. What should the student include to best help explain how a volcano works?  
 (A) a photograph of an active volcano (B) a map showing the location of a volcano (C) a table of famous volcanoes and last known eruptions (D) a diagram showing the structure of a volcano

A:
D
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