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 of these shows the correct order for the central dogma of molecular biology?  
 (A) DNA to protein to RNA (B) RNA to DNA to protein (C) protein to DNA to RNA (D) DNA to RNA to protein

A: D
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Q: A biological community is made up of all the  
 (A) populations living in an area (B) natural resources present in an area (C) members of a species on Earth (D) environments on Earth

A: A
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Q: A rosebush and a bird are similar because they both  
 (A) are living organisms. (B) need to search for food. (C) make their own food. (D) are non-living organisms.

A:
A
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