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:
Which illustrates the correct order of relationships in organisms?  
 (A) tissue -> organ system -> organ -> cell (B) organ -> cell -> organ system -> tissue (C) cell -> tissue -> organ -> organ system (D) organ system -> organ -> cell -> tissue
answer:
C


question:
Which lists the diameter of the planets in order from smallest to largest?  
 (A) Venus, Earth, Mercury, Mars (B) Earth, Mars, Venus, Mercury (C) Mars, Mercury, Earth, Venus (D) Mercury, Mars, Venus, Earth
answer:
D


question:
Rocks and Earth and on the Moon are made of similar materials. What does this observation most likely suggest?  
 (A) Both the Moon and Earth split off from the Sun. (B) Life must have existed on the Moon at one time. (C) The Moon was probably formed from material from Earth. (D) The whole solar system is made up of the same kinds of rocks.
answer:

C