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: Hundreds of years ago there were fewer people on the Earth than there are today. Because of this, there was 
 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: more water
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Q: Question: If Mona is comparing sandpaper with notebook paper and she determines that sandpaper is rougher then notebook paper, which object has more friction? 
 Option1: sandpaper 
 Option2: notebook paper 
 Explanation: Rougher surfaces have more friction between them than smoother surfaces.

A: sandpaper
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Q: Question: As a diver goes deeper into the water, the water gets 
 Option1: warmer 
 Option2: colder. 
 Explanation: Water also gets colder as you go deeper.

A:
colder.
****