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: The Sun is classified as  
 (A) an organism (B) a decomposer (C) a star (D) a planet
Example Output: C

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 trait does a cactus seedling inherit from its parents?  
 (A) the amount of water it absorbs (B) the length of its spines (C) the type of organism that pollinates its flowers (D) the number of organisms that consume its fruit
Example Output:
B