Which of the Following Positioning Setup Procedures Must Be Completed

Multiple Choice

Which of the following positioning setup procedures must be completed to obtain open tarsometatarsal and navicular-cuneiform joint spaces on an AP axial foot projection?
1) The patient's foot is positioned flat against the IR.
2) The foot, ankle, and lower leg are aligned.
3) The central ray is angled 10 to 15 degrees proximally.
4) A compensating filter is placed over the toes.

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