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.

[Q]: Question: If Jim moves his telescope to a location with less air above it, what will happen to the amount of interference from the atmosphere? 
 Option1: increase 
 Option2: decrease 
 Explanation: Many observatories are built on high mountains. There is less air above the telescope, so there is less interference from the atmosphere.
[A]: decrease


[Q]: Question: Will takes away half of a rock. The total surface area of the rock has now 
 Option1: decreased 
 Option2: increased 
 Explanation: As rock breaks into smaller pieces, the surface area of the pieces increases.
[A]: decreased


[Q]: Question: John was analyzing some of the results from his sunscreen study. He found that a lower SPF protects the skin 
 Option1: Shorter 
 Option2: Longer 
 Explanation: A sunscreen with a higher SPF value protects the skin longer.
[A]:
Shorter