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.

Input: Consider Input: One role of a producer in a food chain is to provide  
 (A) water for plants (B) sunlight for plants (C) nutrients for animals (D) shelter for animals

Output: C


Input: Consider Input: The engineering team that is designing a scientific research station on the Arctic permafrost has to provide the station with energy for cooking, heating, and lighting. Considering the fragile environment and other conditions there, the best choice is probably to  
 (A) build a wind turbine. (B) have fuel trucked in. (C) have a pipeline built. (D) build a solar collector.

Output: A


Input: Consider Input: Apple slices were divided evenly between two identical metal boxes. A lighted 20-watt incandescent light bulb was placed in box A, and a lighted 20-watt fluorescent light was placed in box B. The apple slices in box A dried faster than those in box B because  
 (A) fluorescent light is a luminous light. (B) incandescent light produces more heat. (C) fluorescent light has a lower frequency. (D) incandescent light causes a chemical reaction.


Output: B