The visual examination of the external auditory canal and the tympanic membrane is:
A) tuning fork test.
B) tympanometry.
C) electronystagmography.
D) otoscopy.
D
Explanation: A) The tuning fork test tests measures the patient's response to the noise of a tuning fork.
B) Tympanometry tests middle ear pressure and eardrum movement.
C) Electronystagmography studies eye movements in response to sound.
D) Correct.
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