Plsss hurr 9-1-1 dispatchers can provide valuable help on the phone such as how to preform first aid how to do CPR and how to use an

Group of answer choices

DEA

EDA

ADE

AED

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)