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 is a process that occurs during photosynthesis?  
 (A) Plants take in oxygen and release sugar. (B) Plants take in sugar and release minerals. (C) Plants take in minerals and release carbon dioxide. (D) Plants take in carbon dioxide and release oxygen.
Example Output: D

Example Input: Organisms contribute to the water cycle mainly through the process of  
 (A) irrigation. (B) evaporation. (C) precipitation. (D) transpiration.
Example Output: D

Example Input: Many natural resources are found in Maryland and the surrounding area. Some of these natural resources are renewable and some are nonrenewable. People use both kinds of resources in daily activities. Using natural resources often produces waste products. Which of these natural resources found in Maryland is nonrenewable?  
 (A) coal (B) soil (C) water (D) wood
Example Output:
A