When Initiating Cardiopulmonary Resuscitation on a Hospitalized Client,which of These

When initiating cardiopulmonary resuscitation on a hospitalized client,which of these actions should the nurse take to promote return of respiration?

A) Ask a client's family member to perform mouth-to-mouth resuscitation.
B) Personally give breaths using mouth-to-nose technique.
C) Request that an endotracheal tube (ET) be placed by qualified personnel.
D) Use a bag-valve-mask resuscitator.