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: If Jim increases the size of his base, what will happen to the rate of hydroxide ion production? 
 Option1: increase 
 Option2: decrease 
 Explanation: A stronger base produces more hydroxide ions than a weaker base.
Example Output: increase

Example Input: Question: William sees that a country is shrinking rapidly. Will there be more or less availability of water in the future? 
 Option1: more 
 Option2: less 
 Explanation: The availability of water is projected to get worse as demand increases.
Example Output:
more