instruction:
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.
question:
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.
answer:
increases


question:
Question: Don was swimming in the ocean, and decided to dive deeper. Don noticed that the shallower he swam the water got 
 Option1: darker 
 Option2: lighter 
 Explanation: The deeper you go, the darker the water gets.
answer:
lighter


question:
Question: John was looking at rocks in the valley and noticed something. The less resistant the rocks he looked at were, the amount they remained was 
 Option1: Shorter 
 Option2: Longer 
 Explanation: Different types of rocks weather at different rates. More resistant types of rocks will remain longer.
answer:

Shorter