On a smiling photograph, the chin appears positioned too far inferiorly. This finding is best described as:

Correct answer: A. Excessive lower facial (vertical) height

• A. Correct. A chin set too low lengthens the lower third of the face — an excess of vertical/lower facial height.
• B. A cant is a transverse tilt of the occlusal/maxillary plane, not a vertical chin problem.
• C. Transverse asymmetry is a left-right discrepancy, not the described inferior chin position.
• D. Reduced incisal display relates to how much tooth shows, not chin vertical position.