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.

[EX Q]: 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.
[EX A]: decrease

[EX Q]: Question: Mona is excavating a deep tunnel as part of an exploratory committee. As she travels upwards back from the Earth, what can she expect will happen to the temperature? 
 Option1: increase 
 Option2: decrease 
 Explanation: Temperature increases with depth inside the Earth, so melting of rocks is more likely to occur at greater depths.
[EX A]: decrease

[EX Q]: Question: If there were more land in the Southern Hemisphere, there would likely be _____ trash buildup in the oceans. 
 Option1: more 
 Option2: less 
 Explanation: The Southern Hemisphere has less trash buildup in the oceans because less of the region is continent.
[EX A]:
more