Which Technique Should the Nurse Use to Assess a Patient's

Which technique should the nurse use to assess a patient's cranial nerve (CN) IX?

A) Apply a tongue depressor to the back of the throat.
B) Ask the patient to read from a book or a newspaper.
C) Ask the patient to smile, frown, puff cheeks, and raise eyebrows.
D) Ask the patient to follow the examiner's finger as it is moved toward the patient's nose.