An AP Atlas and Axis Projection with Poor Positioning Demonstrates

Multiple Choice

An AP atlas and axis projection with poor positioning demonstrates the dens superimposed over the posterior occiput. The upper incisors are demonstrated about 3 inches (7.5 cm) superior to the posterior occiput's inferior edge. How could the positioning setup be adjusted for an optimal projection to be obtained?
1) Adjust the central ray 15 degrees caudally.
2) Tuck the patient's chin 1.5 inches (3.75 cm) .
3) Align the acanthiomeatal line perpendicular to the imaging table.
4) Move the central ray and IR 3 inches (7.5 cm) inferiorly.

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