TASK DEFINITION: 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.
PROBLEM: What type of galaxy is the Milky Way?  
 (A) spiral (B) elliptical (C) irregular (D) oval

SOLUTION: A

PROBLEM: In an accurate diagram of the solar system, which object would be shown closest to Earth?  
 (A) the Moon (B) the asteroid belt (C) Mars (D) Saturn

SOLUTION: A

PROBLEM: Three main sequence stars are being compared. Which characteristic would these three stars most likely have in common?  
 (A) chemical composition (B) distance from Earth (C) temperature (D) brightness

SOLUTION:
A

