On a Lateral Projection of the Knee,what Anatomy Is Used

On a lateral projection of the knee,what anatomy is used to determine if the knee joint is properly positioned?

A) Femoral condyles should be demonstrated superimposed.
B) The tibial tuberosity should be superimposed on the superior tibia.
C) The intercondylar eminence should be centered between the tibial plateaus.
D) The patella is demonstrated superimposed on the distal femur.