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: An object with large kinetic energy is probably 
 Option1: small 
 Option2: large 
 Explanation: An object with greater mass or greater velocity has more kinetic energy.

Ex Output:
large


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: Does a ball on earth have more or less gravity on it than in space? 
 Option1: more 
 Option2: less 
 Explanation: The closer objects are, the stronger the gravitational pull between them.

Ex Output:

more