The sentence below

Stanford University School of Medicine currently uses a virtual reality computer program “to allow surgeons to practice surgery on a virtual patient" as though they were in a real operating room.

A. Needs a citation

B. Does not need a citation

A. Needs a citation

B. Does not need a citation

B. Does not need a citation.

The sentence you provided is a general statement about Stanford University School of Medicine using a virtual reality computer program for surgical training. It does not make any specific claims or reference any specific research findings or studies. As such, it does not require a citation.