When Radiographing a Wedge-Shaped Anatomical Structure Such as the Femur

When radiographing a wedge-shaped anatomical structure such as the femur, the thicker portion of the anatomy should be positioned

A) under the cathode end of the tube.
B) in the exact center of the beam. as it is most intense in the center.
C) off center laterally to negate the heel effect.
D) under the anode side of the tube.