The Clinician Is Having Difficulty Accessing the Lingual Aspect of a Maxillary

The clinician is having difficulty accessing the lingual aspect of a maxillary posterior sextant. For right-handed clinicians, this is the maxillary right posterior sextant, lingual aspect. For left-handed clinicians, this is the maxillary left posterior sextant, lingual aspect. The client and clinician chairs are correctly positioned for the treatment area. Which of the following might allow better access?

A) Ask the client to turn her head away from you
B) Ask the client to turn her head toward you
C) Ask the client to lower her chin (chin down position)
D) Lower the seat of the clinician chair