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: 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: Jean and John were going to have a baby, and they are both in terrible shape. Jean and John are likely to have offspring in numbers that are 
 Option1: greater 
 Option2: smaller 
 Explanation: Genotypes with greater fitness produce more offspring and pass more copies of their alleles to the next generation.
Example Output: smaller

Example Input: Question: A Geiger counter is clicking away, and suddenly speeds up quite a lot. The counter is telling people that the level of radiation is 
 Option1: lower 
 Option2: higher 
 Explanation: The faster the clicks of a Geiger counter occur, the higher the level of radiation.
Example Output:
higher