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: Greta has 15 resistors in series on her circuit, while Evan has 2 similar resistors in series on his circuit. Whose circuit has the greatest resistance? 
 Option1: Greta 
 Option2: Evan 
 Explanation: Increasing the number of resistors in a series circuit increases the overall resistance of the circuit.
[EX A]: Greta

[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: As Earth's climate becomes cooler it will develop _____ varieties of vegetation? 
 Option1: less 
 Option2: more 
 Explanation: The warmer a climate is, the more types of vegetation it will have and the greater the rate of biological weathering.
[EX A]:
less