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 Q]: Question: Noah compares the density of the water in a pond during a hot July day and a cold winter morning. The water on the July day is 
 Option1: more dense 
 Option2: less dense. 
 Explanation: Lower temperature and higher salinity yield the densest water.
[EX A]: less dense.

[EX Q]: Question: Mona lives in a country that experiences low levels of sunlight. If she moves to a sunnier country, what happens to her chance of getting skin cancer? 
 Option1: increases 
 Option2: decreases 
 Explanation: More UV rays increase skin cancer rates.
[EX A]: increases

[EX Q]: Question: Jeffrey decreases the number of carbon atoms to a natural gas hydrocarbon in a lab. The isomers 
 Option1: increase 
 Option2: decrease 
 Explanation: As you increase the number of carbon atoms in a hydrocarbon, the number of isomers quickly increases.
[EX A]:
decrease