TASK DEFINITION: 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.
PROBLEM: Melting, boiling, and freezing are examples of  
 (A) physical changes. (B) chemical changes. (C) magnetic changes. (D) electrical changes.

SOLUTION: A

PROBLEM: If you took all of the atoms out of a chair, what would be left?  
 (A) The chair would still be there, but it would weigh less. (B) The chair would be exactly the same as it was before. (C) There would be nothing left of the chair. (D) Only a pool of liquid would be left on the floor.

SOLUTION: C

PROBLEM: John has diabetes. Which of the following should he be careful about eating or drinking?  
 (A) beef (B) eggs (C) milk (D) fruit juice

SOLUTION:
D