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.

Example Input: Which property of proteins best allows them to perform an enormously diverse range of functions?  
 (A) their large, chemical-energy reserve (B) their large, stored-electric potential (C) the complexity of their folded structure (D) the wide variety of elements they include
Example Output: C

Example Input: Which is a major difference between the life cycles of different types of plants?  
 (A) the way they die (B) the energy they use (C) the way they reproduce (D) the way they make food
Example Output: C

Example Input: Many birds avoid eating the viceroy butterfly because it looks like the monarch butterfly. Monarch butterflies contain a substance that makes the birds sick when monarchs are eaten. The development of the pattern of the viceroy butterfly to look like the monarch butterfly is an example of  
 (A) camouflage. (B) coloration. (C) diversity. (D) mimicry.
Example Output:
D