instruction:
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.
question:
As water cools to a temperature of zero degrees Celsius and forms ice, water molecules tend to  
 (A) move farther apart. (B) vibrate rapidly. (C) flow more randomly. (D) gradually expand.
answer:
A


question:
Which animal eats only plants?  
 (A) Cat (B) Dog (C) Lion (D) Rabbit
answer:
D


question:
If you wanted to be able to look at the stars, the planets, and the Moon more closely, what should you use?  
 (A) Telescope (B) Periscope (C) Microscope (D) Magnifying glass
answer:

A