A PA Wrist Projection Obtained with the Hand Flexed and the Metacarpals

Multiple Choice

A PA wrist projection obtained with the hand flexed and the metacarpals at a 45-degree angle with the IR demonstrates
1) a closed radioulnar articulation.
2) foreshortened metacarpals.
3) a decrease in scaphoid foreshortening.
4) closed second through fifth carpometacarpal joint spaces.

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