A Patient Is Agitated and Confused and Keeps Getting Out

A patient is agitated and confused and keeps getting out of bed and needs to be observed constantly. The best initial nursing intervention is to:

A) have a family member or friend sit with the patient.
B) obtain an order for a sedative from the physician.
C) instruct the nurse's aide to apply a vest restraint.
D) make sure the side rails are up and close the door.