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: As goats are removed from an area with grass what will happen to the grass levels? 
 Option1: increase 
 Option2: decrease 
 Explanation: In an inverse relationship, when one variable increases, the other variable decreases.
[EX A]: increase

[EX Q]: Question: Dan is swimming into shallower water. The water the shallower he goes will be 
 Option1: younger 
 Option2: older 
 Explanation: Deeper aquifers typically contain older 'fossil water.'
[EX A]: younger

[EX Q]: Question: We shiver when it is cold because it allows us to produce 
 Option1: more heat 
 Option2: less heat 
 Explanation: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.
[EX A]:
more heat