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: Why would animals most likely have to leave an area during a drought?  
 (A) to find mates (B) to find shelter (C) to escape predators (D) to find water and food
Example Output: D

Example Input: Rock layers with sand-sized particles were most likely deposited by  
 (A) wind. (B) water. (C) glaciers. (D) landslides.
Example Output: A

Example Input: A ball is thrown straight up. Which statement best describes the motion of the ball while the ball is at the maximum height?  
 (A) The speed and acceleration are constant. (B) The velocity is zero, and the acceleration is constant. (C) The speed and acceleration are changing. (D) The velocity is zero, and the acceleration is changing.
Example Output:
B