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 you breathe on a mirror, part of the mirror clouds up. What are you actually seeing when you see the mirror cloud up?  
 (A) Water droplets that formed from cooled water vapor in your breath (B) Carbon dioxide that you are breathing out from your lungs (C) Oxygen that you are breathing out from your lungs (D) Cooled nitrogen in the air around you
Example Output: A

Example Input: In a northern state, a room used for growing plants is not allowing enough light to enter for healthy plant growth. Adding windows in walls facing which direction would best solve this problem?  
 (A) north (B) south (C) east (D) west
Example Output: B

Example Input: Heat is applied to a beaker of water, raising the water temperature a few degrees. What happens to the water molecules after heat is applied?  
 (A) The molecules spread apart and move more slowly. (B) The molecules spread apart and move more quickly. (C) The molecules come together and move more slowly. (D) The molecules come together and move more quickly.
Example Output:
B