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: What will happen to Jim's muscle strength if he exercises more then he has in the past? 
 Option1: his muscles will become stronger 
 Option2: his muscles will become weaker 
 Explanation: Aerobic exercise increases the size and strength of muscles in the heart and helps all your muscles develop greater endurance.
[A]: his muscles will become stronger


[Q]: Question: John watched the particles interacting in the laboratory. He observed that the faster an object is moving, means that the kinetic energy is 
 Option1: Higher 
 Option2: Lower 
 Explanation: Anything that is moving has kinetic energy, and the faster it is moving, the more kinetic energy it has.
[A]: Higher


[Q]: Question: Eric stopped rubbing a blanket on his arm. His arm gets warmer because the molecules inside get 
 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]:
slower