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 Input:
Question: Jeffrey subtracted more and more dough to the recipe. As he subtracts more, the force of attraction the dough is capable of 
 Option1: increases 
 Option2: decreases 
 Explanation: The greater the objects mass, the greater the force of attraction; in addition, the greater the distance between objects, the smaller the force of attraction.

Ex Output:
decreases


Ex Input:
Question: Chris is studying two countries. He finds that China has half as many factories putting out fossil fuels into the air than the United States. Based on this information, the factories in _____ are causing more air pollution. 
 Option1: United States 
 Option2: China 
 Explanation: Because richer nations use more fossil fuels, they also cause more air pollution and global warming than poorer nations do.

Ex Output:
United States


Ex Input:
Question: If Mary is pushing her wagon and she increases the force that she is applying to push it, what will happen to the wagon's acceleration? 
 Option1: increase 
 Option2: decrease 
 Explanation: The greater the net force acting on the object, the greater its acceleration will be, but the mass of the object also affects its acceleration.

Ex Output:

increase