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.

Example 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.
Example Output: small

Example Input: Question: Ian was applying heat to a reactant. The rate of the reaction that occurs will now be 
 Option1: faster 
 Option2: slower 
 Explanation: When the temperature of reactants is higher, the rate of the reaction is faster.
Example Output: faster

Example Input: Question: As you monitor sound waves closer to a speaker they become 
 Option1: louder 
 Option2: quieter 
 Explanation: The farther the sound waves travel away from the source, the more spread out their energy becomes.
Example Output:
louder