To avoid excessive and unnecessary noise, the rider of a motorcycle should...
A)ride with an open exhaust.
B)ride using the lowest possible gear ratio.
C)avoid revving the engine unnecessarily.Correct
In general, the exhausts of some motorcycles are louder than those of cars, and although they may produce noise levels permitted by current legislation, avoiding unnecessary and pointless revving will help reduce noise pollution.
Riding with an open exhaust is prohibited.