You Are Assisting a 23 Year Old Male Patient with the Administration

You are assisting a 23 year old male patient with the administration of his metered-dose inhaler (MDI) . During this procedure you should

A) instruct the patient to quickly exhale after administration.
B) depress the MDI as the patient holds the applicator.
C) ask the patient to exhale deeply before administration.
D) gently roll the MDI in your palms to mix the medication.