Chronic obstructive pulmonary disease, emphysema, and chronic bronchitis are the examples of . a. hypokinetic disease
b. bradycardia
c. chronic lower respiratory disease
d. genetic morbidity

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)

The answer to your question  is 6