A Person Able to Hear Only High-Frequency Sounds Would Probably

Multiple Choice

A person able to hear only high-frequency sounds would probably have which of the following structural problems in the ear?

A) The tympanum is damaged because of chronic ear infections.
B) The basilar membrane is stiffened along its entire length.
C) The ear ossicles are abnormally thickened.
D) All of the above problems could result in inability to detect low-frequency sound.