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: What is the MAJOR reason Earth has seasons?  
 (A) Earth has a moon (B) Earth has a tilted axis (C) Earth has a magnetic field (D) Earth has an elliptical orbit
Example Output: B

Example Input: Which of these properties of water helps moderate the weather of coastal areas?  
 (A) neutral pH (B) high specific heat (C) dissolves many substances (D) floats as a solid
Example Output: B

Example Input: Diamonds are formed when carbon is placed under extreme heat and pressure. This process occurs  
 (A) in caves. (B) in the ocean. (C) in the atmosphere of Earth. (D) beneath the surface of Earth.
Example Output:
D