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: When Shane goes swimming in warmer water, he can move about slowly, 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: faster


Input: Consider Input: Question: If Mona is adding chemicals to her swimming pool and she lowers the pH value of the water, what happens to the acidity of the water in the pool? 
 Option1: increase 
 Option2: decrease 
 Explanation: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.

Output: decrease


Input: Consider Input: Question: Plants grow better in tropical areas because it is 
 Option1: colder 
 Option2: warmer 
 Explanation: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.


Output: warmer