Calculate a Patient's Total Arterial Oxygen Content Given the Following $\bullet$

Calculate a patient's total arterial oxygen content given the following data:
$\bullet$ Arterial oxygen tension (PaO₂) , 100 mm Hg
$\bullet$ Arterial carbon dioxide tension (PaCO₂) , 45 mm Hg
$\bullet$ Arterial oxygen saturation (SaO₂) , 97.5%
$\bullet$ Hemoglobin concentration ([Hb]) , 15 g/dL
$\bullet$ Cardiac output, 4.5 L/minute
$\bullet$ Stroke volume, 55 mL/beat

A) 19.9 vol%
B) 18.7 vol%
C) 16.6 vol%
D) 14.9 vol%