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: Katie is rubbing her hands on her leg. One hand rubs fast, the other hand rubs slow. The hand that will be warmer in the end is the one that moves 
 Option1: faster 
 Option2: slower 
 Explanation: Friction causes the molecules on rubbing surfaces to move faster, so they have more energy. This gives them a higher temperature, and they feel warmer.

A: faster
****
Q: Question: john was taking the patients blood pressure and other vital signs. He saw that the lower the blood volume, the pressure was 
 Option1: Greater 
 Option2: Less 
 Explanation: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.

A: Less
****
Q: Question: If Mona is holding a baseball above a table and then increases 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:
increases
****