You are given a science question (hard-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.

Input: Consider Input: Which activity is an example of a good health habit?  
 (A) riding a bicycle without a helmet (B) smoking cigarettes (C) wearing a hat while in the Sun (D) eating with dirty hands

Output: C


Input: Consider Input: A car tire runs over a can and crushes it completely. Which statement is true for the atoms of the structure of the can?  
 (A) The atoms are broken. (B) The atoms are flattened. (C) The atoms remain the same. (D) The atoms are changed into different atoms.

Output: C


Input: Consider Input: Solar cells absorb energy from the sun. In order to use this energy to power household appliances, solar cells must convert the absorbed energy to  
 (A) heat. (B) light. (C) radiation. (D) electricity.


Output: D