Which Nursing Action Should Be Included in the Postoperative Plan

Which nursing action should be included in the postoperative plan of care for a patient after a laparoscopic esophagectomy?

A) Reposition the NG tube if drainage stops.
B) Elevate the head of the bed to at least 30 degrees.
C) Start oral fluids when the patient has active bowel sounds.
D) Notify the doctor for any bloody nasogastric (NG) drainage.