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: Mona lives in a city that doesn't use much oil. If the mayor of that city decides to change their policy and the city begins using more oil, what happens to the amount of pollution generated by the city? 
 Option1: increases 
 Option2: decreases 
 Explanation: Greater use of oil and other fossil fuels causes more pollution.
[A]: increases


[Q]: Question: Dane is checking the pH of his project and sees that it is quite high, which means that the acid in his project is 
 Option1: higher 
 Option2: lower 
 Explanation: Lower pH numbers are more acidic and higher numbers are less acidic (also called more alkaline).
[A]: lower


[Q]: Question: Mark studies rocks for a living. He is curious if rocks deeper in the Earth will be warmer or cooler. If Mark were to take the temperature of a rock that is half a mile into the Earth's surface, and then take the temperature of a rock 1 mile into the Earth's surface, he would find that the rock 1 mile into the Earth's temperature is 
 Option1: lower. 
 Option2: higher 
 Explanation: Temperature increases with depth inside the Earth, so melting of rocks is more likely to occur at greater depths.
[A]:
higher