Which term best describes a fad diet? a. unsustainable b. sustainable c. highly effective d. healthful

A. the answer is unsustainable

The answer should be a considering all the other choices are good things and a bad diet isn’t good

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)

By placing 2 fingers at the sternum (the spot where the lower ribs meet) the put the heel of your other hand next to your fingers. hope this