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.

Ex Input:
Question: If the speed of a stream decreases, the size of the particles carried in that stream 
 Option1: increase 
 Option2: decrease 
 Explanation: In erosion, a slower moving stream will only carry smaller particles.

Ex Output:
decrease


Ex Input:
Question: Will decreases the population of his model of the world's population. The amount of water scarcity, if no other variables are changed, will likely go 
 Option1: up 
 Option2: down 
 Explanation: Many of the worlds people live with water scarcity, and that percentage will increase as populations increase and climate changes.

Ex Output:
down


Ex Input:
Question: Ian is trying to melt rocks, nothing that the water around the rocks is quite high. Since there is a lot of water around the rocks, the melting point of the rock will be 
 Option1: increased 
 Option2: decreased 
 Explanation: As the amount of water increases, the melting point of rock decreases.

Ex Output:

decreased