Final answer:
Audiometry is a test of hearing ability, typically evaluating the range of 250 Hz to 8000 Hz and showing results in an audiogram with the normal hearing threshold represented as 0 dB at all frequencies.
Step-by-step explanation:
Audiometry is indeed a test of hearing ability, so the correct answer to your question is A. True. Audiometry tests are designed to measure an individual's hearing levels over a range of frequencies, typically from 250 Hz to 8000 Hz. These hearing tests can graphically represent one's hearing thresholds using an audiogram, which indicates the softest sounds a person can hear at different frequencies. The hearing threshold in an audiogram is measured in decibels (dB) relative to the normal hearing threshold. In a typical hearing test, normal hearing is depicted as 0 dB across all frequencies tested. Certain patterns of hearing loss can be identified through an audiogram, such as the dip near 4000 Hz that often results from noise-induced hearing loss, or the high-frequency loss characteristic of presbycusis, which is age-related hearing loss.