The loudness of a sound that a person can withstand without discomf...

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The loudness of a sound that a person can withstand without discomfort is about
\( \mathrm{P} \)
a. \( 150 \mathrm{~dB} \).
b. \( 215 \mathrm{~dB} \).
c. \( 30 \mathrm{~dB} \).
d. \( 80 \mathrm{~dB} \).
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