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]: A student is asked to bring something that feels rough to class. Which would be BEST for him to bring?  
 (A) Pillow (B) Marble (C) Sandpaper (D) Trading card
[A]: C


[Q]: Bones support the body. What pulls and pushes on bones to move them?  
 (A) blood (B) nerves (C) muscles (D) skin
[A]: C


[Q]: In which way are sugars usually transported throughout a pine tree?  
 (A) across from the cones to the needles (B) down from the needles to the roots (C) up from the roots to the branches (D) circular from the top to the bottom of the trunk
[A]:
B