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.

[Q]: Animals get energy for growth and repair from  
 (A) soil (B) food (C) water (D) air
[A]: B


[Q]: Which of these cycles takes 24 hours?  
 (A) Earth rotating on its axis (B) Earth revolving around the Sun (C) the Moon rotating on its axis (D) the Moon revolving around Earth
[A]: A


[Q]: Students are studying liquids that make bubbles. Which question could be answered by using a ruler?  
 (A) Which liquid makes bubbles that are the largest? (B) Which liquid makes bubbles that are the prettiest? (C) Which liquid makes bubbles that are the best smelling? (D) Which liquid makes bubbles that are the most interesting?
[A]:
A