In Which Order Will the Nurse Take These Actions When

In which order will the nurse take these actions when assisting with oral intubation of a patient who is having respiratory distress? Put a comma and space between each solve choice (a, b, c, d, etc.) ____________________
A) Obtain a portable chest-x-ray.
B) Place the patient in the supine position.
C) Inflate the cuff of the endotracheal tube.
D) Attach an end-tidal CO₂ detector to the endotracheal tube.
E) Oxygenate the patient with a bag-valve-mask system for several minutes.