Which Patient Is at Greatest Risk for the Development of Postoperative

Which patient is at greatest risk for the development of postoperative nausea and vomiting?

A) 68-year-old male who had a total hip replacement under general anesthesia
B) 55-year-old female who had a mastectomy under general anesthesia
C) 38-year-old male with a 15 pack-year history of smoking who had a fractured humerus repair under regional anesthesia
D) 25-year-old female who underwent a cholecystectomy under general anesthesia