You Are Instructing a Patient on How to Use a Metered-Dose

You are instructing a patient on how to use a metered-dose inhaler. When you ask if the patient has any questions, she asks, "How long do I have to hold my breath after inhaling the medication?" Your best response would be:

A) You may release your breath as soon as you have finished inhaling.
B) Hold your breath for 5 seconds, then exhale slowly.
C) Hold your breath for as long as possible, up to 10 seconds.
D) Try to hold your breath for at least 1 minute.