Which of the following is NOT a function of the recommended dietary allowance (RDA)

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)

Making sure the equipment is cleaned daily and insuring proper hygiene is kept up with the working staff.

Answer lack of education;                   lack of protection                  lfailure of getting tested