You are called to transport a​ 48-year-old woman who has been previously diagnosed with pneumonia and is complaining of shortness of breath. Your patient is normotensive and somewhat​ apprehensive, and you opt to start her on oxygen via a nasal cannula. What is the maximum flow rate you should administer with this oxygenation​ device?

A. 2 lpm
B.6 lpm
C.10 lpm
D.4 lpm