A Physician Orders Postural Drainage for a Patient with Aspiration

A physician orders postural drainage for a patient with aspiration pneumonia in the superior segments of the left lower lobe. Which of the following positions would you recommend for this patient?

A) patient prone with a pillow under abdomen, bed flat
B) head down, patient prone with a pillow under abdomen
C) head down, patient supine with a pillow under knees
D) patient supine with a pillow under knees, bed flat