Sound that is audible to human beings has a frequency lying between
A) 20 Hz and 20 kHz.
B) 2 kHz and 20 kHz.
C) 50 Hz and 50 kHz.
D) 200 Hz and 20 kHz.
E) 100 Hz and 800 Hz.
A) 20 Hz and 20 kHz.
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