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: One important use of coal is to produce energy for homes. Coal can be burned and converted to  
 (A) wind energy. (B) nuclear energy. (C) electrical energy. (D) solar energy.

SOLUTION: C

PROBLEM: A student is dropping objects of various sizes and shapes and recording the time it takes for each object to hit the ground. Which question is the student most likely trying to answer?  
 (A) What force slows some objects down? (B) What force pulls objects to the ground? (C) Do some objects fall more quickly than others? (D) Do objects break or bounce when hitting the ground?

SOLUTION: C

PROBLEM: The nucleus contains DNA. Which statement best describes how DNA controls the working of the cell?  
 (A) It codes for proteins. (B) It inhibits division of cells. (C) It helps in energy transformation. (D) It regulates traffic in and out of the cell.

SOLUTION:
A