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: If an environment becomes warmer and drier, the change that would most likely help a species adapt would be an increase in its  
 (A) amount of body fat. (B) amount of body hair. (C) ability to climb trees. (D) ability to store water.
Example Output: D

Example Input: In an electric motor, electrical energy is converted into  
 (A) mechanical energy. (B) chemical energy. (C) thermal energy. (D) light energy.
Example Output: A

Example Input: Which of the following laboratory practices should be avoided?  
 (A) pouring water into an acid (B) pouring a base into water (C) pouring water into alcohol (D) pouring alcohol into a base
Example Output:
A