Dr. Clark has been lecturing for 3 hours and her ears are beginning to "pop." Which of the following best explains her condition?
A. Inflammation of the inner ear is causing fluid to compress the oval window, leading to the popping noise.
B. Inflammation of her larynx is blocking airflow through her external auditory canal, resulting in lack of pressure equilibrium across her oval window.
C. Inflammation in her middle ear is causing fluid to build up in the external auditory canal, leading to sudden movement of her tympanic membrane.
D. Inflammation of her pharynx is blocking airflow through her auditory tubes, resulting in uneven pressure across her tympanic membranes.
Answer: D
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