What condition is indicated by audiometric zero?

Audiometric zero signifies a reference point in hearing tests which indicates an average threshold of hearing for a group of normal-hearing individuals. When a person has an audiometric zero, it means they can hear sounds at all tested frequencies at levels that are considered typical for normal hearing. Thus, individuals scoring at or near audiometric zero demonstrate that they have no hearing loss within the range of frequencies typically assessed in hearing tests. This is the rationale for identifying choice B as correct.

In contrast, other conditions like absence of hearing loss (which might imply normal hearing but not specifically linked to the audiometric scale), complete deafness (which denotes an inability to hear sounds at any frequency), and wilful hearing loss (an act of feigning a hearing impairment) do not accurately capture the concept of audiometric zero, which is specifically defined by the ability to hear sounds across all frequencies without any degree of impairment.