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: Terry sees a cold day outside. He is _____ likely to produce body heat on this day. 
 Option1: more 
 Option2: less 
 Explanation: For example, on a cold day, an endotherm may produce more body heat by increasing its rate of metabolism.
Example Output: more

Example Input: Question: Joe is pulling a rubber band with his fingers. When does the band have the most elastic force? 
 Option1: at rest 
 Option2: when stretched 
 Explanation: The elastic force increases the more the material is stretched or compressed.
Example Output: when stretched

Example Input: Question: A slow stream is capable of moving 
 Option1: boulders 
 Option2: sand 
 Explanation: In erosion, a slower moving stream will only carry smaller particles.
Example Output:
sand