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The frequency of human hearing typically decreases with age. The MOST AFFECTED frequencies are:

AAll equally
BLow (20-200 Hz)
CHigh (10,000-20,000 Hz)
DMid (1000-3000 Hz)
Answer & Solution
Correct answer: C. High (10,000-20,000 Hz)
Age-related hearing loss (presbycusis) primarily affects HIGH frequencies first. Hair cells in the inner ear that detect high frequencies are more vulnerable. By age 60, many people can't hear above 12-15 kHz. Low frequencies are usually preserved well.
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