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: Compared to Earth, the Moon is  
 (A) drier. (B) larger. (C) heavier. (D) brighter.

Output: A


Input: Consider Input: Which of the following is an example of a behavioral adaptation?  
 (A) hooves of a horse (B) migration of birds (C) a spider web (D) a bee hive

Output: B


Input: Consider Input: Which material has the least resistance to the flow of electricity?  
 (A) rubber (B) aluminum (C) granite (D) wood


Output: B