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: Tina is putting on a sweater. As she stretches out the material, its elastic force 
 Option1: increases 
 Option2: decreases 
 Explanation: The farther the material is stretched or compressed, the greater the elastic force becomes.
[A]: increases


[Q]: Question: If a device were to become more efficient, it would produce _____ usable energy. 
 Option1: more 
 Option2: less 
 Explanation: The more efficient a device is, the greater the percentage of usable energy it produces.
[A]: more


[Q]: Question: If Milo notices that his skin is becoming cold, what is happening to the diameter of his blood vessels? 
 Option1: increasing 
 Option2: decreasing 
 Explanation: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.
[A]:
decreasing