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The sound level of a dog's bark is 50 dB...

The sound level of a dog's bark is `50 dB`. The intensity of a rock concert is` 10,000` times that of dog's bark. What is the sound level of the rock concert?

A

`50 dB`

B

`100 dB`

C

`90 dB`

D

`60 dB`

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