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 exploring and aquifer and she dives deeper down into it, what happens to the levels of fossil water she encounters? 
 Option1: they increase 
 Option2: they decrease 
 Explanation: Deeper aquifers typically contain older 'fossil water.'
[EX A]: they increase

[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: Don is listening to music at very low decibel levels. His neighbors know that the sound waves have an intensity that is 
 Option1: greater 
 Option2: lesser 
 Explanation: As decibel levels get higher, sound waves have greater intensity and sounds are louder.
[EX A]:
lesser