Which of the following drug is a stimulant? question 32 options: marijuana pcp special k cocaine

Marijuana is a drug stimulant

Marijuana is the only drug stimulant there.

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)