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.

Q: Question: Mel stops after running down the street for exercise. As Mel's heart rate decreases, Mel's blood flow 
 Option1: decreases 
 Option2: increases 
 Explanation: Warming up exercises increases the blood flow to the muscles and increases the heart rate.

A: decreases
****
Q: Question: If Mona is holding a baseball above a table and then decreases the height of that baseball from the table, what happens to the potential energy of the baseball? 
 Option1: increases 
 Option2: decreases 
 Explanation: So the higher an object is above a surface, the more potential energy it has.

A: decreases
****
Q: Question: If Jim moves some particles of matter farther apart, what will happen to the rate at which they can pass vibrations on to nearby particles? 
 Option1: decrease 
 Option2: increase 
 Explanation: When particles of matter are closer together, they can more quickly pass the energy of vibrations to nearby particles.

A:
decrease
****