You will be given a definition of a task first, then some input of the task.
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.

In the Northern Hemisphere, June 21st has more hours of sunlight than any other day. However, June 21st has the fewest hours of sunlight in the Southern Hemisphere. Which best explains why the Northern Hemisphere receives more daylight than the Southern Hemisphere on the same day?
(A) Earth rotates on its axis (B) Earth is tilted on its axis (C) The Sun moves closer to the Northern Hemisphere (D) The Sun releases more energy to the Northern Hemisphere
Output:
B