Resistance exercise in the form of exercise which is created to increase muscular fitness through muscular exercise or muscular group against external resistance.
Resistance can be stated as a workout that causes the muscles to contract against an external resistance and that external resistance could be bricks, a bottle of water, dumbbells, etc.
After lifting weights for two weeks, Joe finds that the weights he has been lifting do not feel very heavy to him anymore. This is an example of Muscle adaptation principle - D.
I would say number 4 because she has a great health by exercising 4 times a week and a balanced dieys and gets a good nights sleep. She is Good with her social skills.
