The Human Ear Canal Is Approximately 2

The human ear canal is approximately 2.50 cm long. It is open to the outside and is closed at the other end by the eardrum. All of the following are frequencies (in the audible range of 20 Hz - 20 kHz) of the standing waves in the ear canal except for

A) 3430 Hz.
B) 13,700 Hz.
C) 10,300 Hz.
D) 17,200 Hz.