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: Erin is trying to get her solution to have a pH as far from zero as possible. The best way for Erin to do that is to have the acidity of the solution 
 Option1: decrease 
 Option2: increase 
 Explanation: The more acidic a solution is, the closer its pH value will be to 0
[A]: decrease


[Q]: Question: The least massive objects have _____ gravity than more massive objects. 
 Option1: higher 
 Option2: lower 
 Explanation: Less massive objects also have less gravity than more massive objects.
[A]: lower


[Q]: Question: If the Earth is orbiting the Sun and it begins to move closer to it, what happens the speed the Earth is moving? 
 Option1: increase 
 Option2: decrease 
 Explanation: The Earth travels faster in its elliptical orbit when it is closer to the Sun than when it is farther away.
[A]:
increase