You are given a question or fill-in-the-blank question, two answer options (Option1 and Option2) and an Explanation. Your task is to find the correct answer (return the string of the correct option, not option1/2) for the given question from the given options and using explanation.

Input: Consider Input: Question: Joe is pulling a rubber band with his fingers. When does the band have the most elastic force? 
 Option1: at rest 
 Option2: when stretched 
 Explanation: The elastic force increases the more the material is stretched or compressed.

Output: when stretched


Input: Consider Input: Question: When Shane goes swimming in warmer water, he can move about quickly, whereas in cooler water, Shane's movement is 
 Option1: faster 
 Option2: slower 
 Explanation: When a volume of water is cooled, the molecules move less vigorously, so same number of molecules takes up less space and the water is denser.

Output: slower


Input: Consider Input: Question: If Jim removes hydrogen ions from his solution, what will happen to the level of acidity? 
 Option1: it will become less acidic 
 Option2: it will become more acidic 
 Explanation: With a higher concentration of hydrogen ions, a solution is more acidic but has a lower pH.


Output: it will become less acidic