An AP Elbow Projection with Accurate Positioning Demonstrates

Multiple Choice

An AP elbow projection with accurate positioning demonstrates
1) the medial and lateral humeral epicondyles in profile.
2) the radial tuberosity in profile medially.
3) an open capitulum-radial joint.
4) the ulna free of radial head and radial tuberosity superimposition.

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