Of all the dietary substances that increase satiety, which of these will have the most dramatic effect?
a. protein
b. artificial sweeteners
c. vitamins
d. sugar

The answer would be B because out of all the options, the sweeteners are artificial(unnaturally produced) making them unhealthy and having the most dramatic effect on the body. It increases the body's weight unhealthily.

Well. erm obesity, anorexia?

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)