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.

[Q]: Question: There are many more people on the Earth today than there were hundreds of years ago. Because of this, there is 
 Option1: more water 
 Option2: less water. 
 Explanation: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.
[A]: less water.


[Q]: Question: If Mona is producing sound waves by listening to her radio at night and she turns up the volume, what happens to the amount of energy being produced by the radio? 
 Option1: increases 
 Option2: decreases 
 Explanation: A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.
[A]: increases


[Q]: Question: The planet gets warmer when there are more or less greenhouse gases? 
 Option1: less 
 Option2: more 
 Explanation: More greenhouse gases trap more heat and warm the atmosphere.
[A]:
more