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]: The first telescopes were invented hundreds of years ago. Which was discovered as a result of this invention?  
 (A) the moons of Jupiter (B) the bacteria that causes disease (C) the deep-sea trenches in the ocean (D) the parts of a plant that perform photosynthesis
[EX A]: A

[EX Q]: 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.
[EX A]: C

[EX Q]: Within a substance, atoms that collide frequently and move independently of one another are most likely in a      
 (A) liquid. (B) solid. (C) gas. (D) crystal.
[EX A]:
C