Which of the following is the most complete description of the constraints imposed on the system by the loop at $A$?

A. force in x-direction

B. force in y-direction

C. force in x-y plane

D. force directed in $0.866i, -0.500j$ direction

E. force directed in $-0.866i, 0.500j$ direction

F. force in x-y plane and moment about z-axis

G. force directed in $0.866i, -0.500j$ direction and moment about z-axis

H. force directed in $-0.866i, 0.500j$ direction and moment about z-axis