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: If Mona lowers the temperature on the solution she is creating, what happens to the speed of particles in that solution? 
 Option1: increases 
 Option2: decreases 
 Explanation: At a lower temperature, particles of the medium are moving more slowly, so it takes them longer to transfer the energy of the sound waves.
Example Output: decreases

Example Input: Question: When in the stratosphere, Dean can tell that the temperature is getting cooler as the altitude he is at 
 Option1: increases 
 Option2: decreases 
 Explanation: The stratosphere contains the ozone layer, the temperatures increase as altitude increases.
Example Output: decreases

Example Input: Question: If Mona lowers the temperature on the solution she is creating, what happens to the speed of particles in that solution? 
 Option1: increases 
 Option2: decreases 
 Explanation: At a lower temperature, particles of the medium are moving more slowly, so it takes them longer to transfer the energy of the sound waves.
Example Output:
decreases