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.

Input: Consider Input: Which scientist is credited with using a telescope in the seventeenth century to discover the moons of Jupiter?  
 (A) Galileo (B) Kepler (C) Einstein (D) Newton

Output: A


Input: Consider Input: Photosynthesis is the process that converts carbon dioxide and water into  
 (A) carbon and oxygen. (B) sugar and hydrogen. (C) sugar and oxygen. (D) nitrogen and carbon.

Output: C


Input: Consider Input: The Milky Way Galaxy looks like a band of light across the sky. Which observation would provide the best view of this band of light without a telescope?  
 (A) observing only near the north or south pole (B) observing only during a lunar or solar eclipse (C) observing on any sunny, clear day (D) observing on any dark, clear night


Output: D