which sound is considered to be extremely loud?\na dishwasher\nb lawn mower\nc vacuum cleaner\nd two of the…

Brief Explanations:

Lawn mowers typically produce high - decibel sounds compared to dishwashers and vacuum cleaners. A lawn mower can produce sounds around 90 - 100 decibels, which is considered extremely loud. Dishwashers are usually around 40 - 60 decibels and vacuum cleaners around 70 - 80 decibels.

Answer:

B. lawn mower