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: If Milo notices that the frequency of his electromagnetic wave seems to be decreasing, what does that say about the energy of the wave? 
 Option1: it's increasing 
 Option2: it's decreasing 
 Explanation: The higher the frequency of an electromagnetic wave, the greater its energy.
answer:
it's decreasing


question:
Question: Michel watched the slow waves hit shore with power. The waves were _____. 
 Option1: big 
 Option2: small 
 Explanation: The size of an ocean wave depends on how fast, over how great a distance, and how long the wind blows. The greater each of these factors is, the bigger a wave will be.
answer:
small


question:
Question: The less energy particles in matter have, they move 
 Option1: slower 
 Option2: faster. 
 Explanation: The particles in matter are always moving. The more energy they have, the faster they move.
answer:

slower