Digital forms of communication such as text and email are considered which type of verbal messages?
a. oral
b. non-oral
c. spoken
d. both oral and non-oral

B because it’s not spoken you are typing it.

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)