A Less Than Optimal Lateral Cervical Vertebrae Projection Demonstrates the Articular

Multiple Choice

A less than optimal lateral cervical vertebrae projection demonstrates the articular pillars of one side of the patient situated anterior to the opposite articular pillars. How was the patient mispositioned?

A) The midsagittal plane was not aligned perpendicular to the IR.
B) The acanthiomeatal line was not parallel with the floor.
C) The midcoronal plane was not aligned perpendicular to the IR.
D) The interpupillary line was not perpendicular to the IR.