TASK DEFINITION: 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.
PROBLEM: Question: By pouring a pound of salt into a bucket of fresh water, could you cause the density of the water to 
 Option1: increase 
 Option2: decrease? 
 Explanation: Water density increases as salinity and pressure increase, or as temperature decreases.

SOLUTION: increase

PROBLEM: Question: Mark is boiling alkenes and wants to see which will boil first; the larger ones or the smaller ones. The alkenes that will boil first are the ones that are 
 Option1: smaller 
 Option2: larger 
 Explanation: Larger alkenes have lower boiling and melting points.

SOLUTION: larger

PROBLEM: Question: If Mona is a nursing mother and her body begins producing less prolactin then before, what happens to the amount of milk she will produce? 
 Option1: decrease 
 Option2: increase 
 Explanation: The more the baby suckles, the more prolactin is released, which causes more milk to be produced.

SOLUTION:
decrease