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: When you go into a cave, the rocks at shallower levels are _____ than the rocks on the surface. 
 Option1: younger 
 Option2: older 
 Explanation: The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.

Ex Output:
younger


Ex Input:
Question: As waves get smaller the frequency of them 
 Option1: increases 
 Option2: decreases 
 Explanation: Wave frequency can be measured by counting the number of crests or compressions that pass the point in 1 second or other time period. The higher the number is, the greater is the frequency of the wave.

Ex Output:
increases


Ex Input:
Question: A sound wave that has less frequency will have _____ energy. 
 Option1: more 
 Option2: less 
 Explanation: A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

Ex Output:

less