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: Mona is a scientist studying erosion at a university. She is observing a river. If she starts taking erosion measurements at the mouth of the river and moves up to the head of the river, what will she find happens as the slope gets steeper? 
 Option1: erosion decreases 
 Option2: erosion increases 
 Explanation: Water flowing over a steeper slope moves faster and causes more erosion.
Example Output: erosion increases

Example Input: Question: Compared to vinegar, which is an acid, would lye, which is a strong base, have a pH value that is 
 Option1: higher 
 Option2: lower? 
 Explanation: Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.
Example Output: higher

Example Input: Question: Compared to the curved lenses of a pair of binoculars, would a large flat sheet of glass refract 
 Option1: less light? 
 Option2: more light 
 Explanation: The more curved the surface of a lens is, the more it refracts light.
Example Output:
less light?