After successfully performing two adrenalectomies (removal of the adrenal gland), the surgical resident was disappointed to learn that he would be merely assisting at the next one. The chief of surgery told him, "I'm doing this one, since the one on the right side may be a little too difficult for you." The difficulty he envisioned stems from the fact that the right suprarenal gland is partly overlain anteriorly by the:

A) Superior Vena Cava
B) Liver
C) Right Kidney
D) Diaphragm