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: Helen is preparing a presentation about objects in the solar system. She includes facts about the order of the planets and their distances from the Sun. Which statement could she include in an accurate presentation?
(A) Mars is closer to the Sun than Earth. (B) Neptune is one light-year from the Sun. (C) Jupiter is farther from the Sun than Uranus. (D) Earth is one astronomical unit from the Sun.
Example Output: D

Example Input: In 1971, the bones of an extinct flying dinosaur were discovered. This kind of discovery helps everyone learn more about
(A) impact of humans on Earth. (B) effect of gravity on animals. (C) history of animal species on Earth. (D) likelihood that dinosaurs will reappear.
Example Output: C

Example Input: When the Northern Hemisphere is tilted away from the Sun causing the rays of light to hit Earth at large angles, which season occurs?
(A) winter (B) spring (C) summer (D) fall
Example Output:
A