An AP Shoulder Projection with Accurate Positioning Demonstrates the

An AP shoulder projection with accurate positioning demonstrates the
1) glenoid fossa in profile.
2) glenohumeral joint centered within the collimated field.
3) superolateral scapular border without thorax superimposition.
4) superior scapular angle superior to the midclavicle.

A) 1, 2, and 3 only
B) 2, 3, and 4 only
C) 2 and 3 only
D) 3 and 4 only