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: If Jean's aquifer has risen to the surface of the pool then the water is how easy to get into? 
 Option1: harder 
 Option2: easier 
 Explanation: The closer to the surface an aquifer is, the easier it is to get the water.

Ex Output:
easier


Ex Input:
Question: If Mona is measuring atoms and she finds out that one atom is smaller then another, what does that imply about the distance of electrons from the nucleus of that atom? 
 Option1: closer together 
 Option2: farther away 
 Explanation: In bigger atoms, valence electrons are farther from the nucleus.

Ex Output:
closer together


Ex Input:
Question: Michael is studying the air quality of various cities. He finds that there are many more pollutants in the air in Mexico City, than there are in the air of Chicago. Therefore, the air quality will be lower in 
 Option1: Chicago 
 Option2: Mexico City 
 Explanation: More pollutants mean poorer air quality.

Ex Output:

Mexico City