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]: Which physical structure would best help a bear to survive a winter in New York State?  
 (A) big ears (B) black nose (C) thick fur (D) brown eyes
[EX A]: C

[EX Q]: What type of galaxy is the Milky Way?  
 (A) spiral (B) elliptical (C) irregular (D) oval
[EX A]: A

[EX Q]: Some astronauts may spend several months in space orbiting Earth. Where do these astronauts most likely stay while in space?  
 (A) on a space station (B) in a space shuttle (C) on a space probe (D) in a lunar module
[EX A]:
A