The Only Internal Force Among The Following Is:, A. Joint Capsule , B. Gluteus Maximus, C. All Of These, D. None Of These, E. Patella

The only internal force among the following is:

A. Joint capsule
B. Gluteus maximus
C. All of these
D. None of these
E. Patella

 

Answer:

c. all of this

Explanation:

because A. and B. are same correct