For an AP oblique shoulder projection (Grashey method), the

1. patient's midcoronal plane is rotated to a 45-degree angle with the IR.
2. central ray is centered 1 inch (2. 5 cm) inferior and medial to the coracoid.
3. patient is rotated toward the affected shoulder.
4. image is obtained with the patient in an upright position.
a. 1 and 3 only
b. 2 and 4 only
c. 2, 3, and 4 only
d. 1, 2, 3, and 4

D