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: The reason that things don't rotate around the sun is because it is 
 Option1: small 
 Option2: large 
 Explanation: The greater the mass of the objects, the stronger the gravitational force of attraction between them.

Ex Output:
small


Ex Input:
Question: Katie is rubbing her hands on her leg. One hand rubs fast, the other hand rubs slow. The hand that will be warmer in the end is the one that moves 
 Option1: faster 
 Option2: slower 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

Ex Output:
faster


Ex Input:
Question: Compared to a hydrocarbon with 10 carbon atoms, would a hydrocarbon with a single carbon atom have 
 Option1: a greater number of isomers 
 Option2: fewer isomers? 
 Explanation: The more carbon atoms a hydrocarbon has, the greater the number of isomers.

Ex Output:

fewer isomers?