Select the correct answer.
Which training principle states that exercising a certain body part or practicing a particular skill primarily develops that part or skill?
A.
balance
B.
individualization
C.
overload
D.
specificity
Which training principle states that exercising a certain body part or practicing a particular skill primarily develops that part or skill?
A.
balance
B.
individualization
C.
overload
D.
specificity