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The howler monkey is the loudest land animal and can be heard up to a distance...

The howler monkey is the loudest land animal and can be heard up to a distance of 3.2 km. Assume the acoustic output of a howler to be uniform in all directions. the distance at which the intensity level of the monkeys call is 27 dB, in si units is:

A. 240
B. 290
C. 140
D. 210
E. 170
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