By learning about their cultural background, children develop A. an ethnic identity
B. prejudicial thinking
C. problem solving skills
D. affirmation skills

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)

The food that we are allergic to! for asking us here at hope this

What are the options?