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.

Question: A piece of sandpaper was rubbed across a glass table, then the sandpaper was rubbed across some gravel. The friction will be greater between 
 Option1: the sandpaper and the glass table or 
 Option2: the sandpaper and the gravel. 
 Explanation: Rougher surfaces have more friction between them than smoother surfaces.
the sandpaper and the gravel.

Question: Alan has a rubber band on his hands. He pushes his hands together and the rubber bands force 
 Option1: increases 
 Option2: decreases 
 Explanation: The farther apart you move your hands, the stronger the force of the rubber band pulling your hands together.
decreases

Question: A population of squirrels in a local forest had less food available to them this spring than they did last spring. During which spring will more squirrels leave the area to live somewhere else? 
 Option1: this spring 
 Option2: last spring 
 Explanation: Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

this spring