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.

[EX Q]: The Great Ocean Conveyer ocean current system runs north through the Atlantic from the equatorial region. If this current got disrupted, North American and European climates would become  
 (A) rainier. (B) colder. (C) windier. (D) more humid.
[EX A]: B

[EX Q]: Which object works best when reflecting light?  
 (A) mirror (B) camera (C) binoculars (D) eyeglasses
[EX A]: A

[EX Q]: What is one factor that contributes to seasons occurring in New York State?  
 (A) the revolution of the Moon around Earth (B) the tilt of Earth on its axis (C) the rising and falling of ocean tides (D) the distance of Earth from the Sun
[EX A]:
B