When participating in a fitness evention, it's important to forridianw youself with the events included in the nation Please select the best met won the chances and

The answer should be d

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)