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.

Example Input: Question: Something with less hydrogen ions would have what pH value?
Option1: high
Option2: low
Explanation: With a higher the concentration of hydrogen ions, a solution is more acidic and has a lower pH.
Example Output: high

Example Input: Question: If Mona is adding chemicals to her swimming pool and she lowers the pH value of the water, what happens to the acidity of the water in the pool?
Option1: increase
Option2: decrease
Explanation: The lower the pH value is, the greater is the concentration of hydrogen ions and the stronger the acid.
Example Output: decrease

Example Input: Question: If you were to heat up steel what would happen to its thermal energy?
Option1: increase
Option2: decrease
Explanation: If two objects have the same mass, the object with the higher temperature has greater thermal energy.
Example Output:
increase