A Hurricane Is Defined as a Large Area of Sustained

A hurricane is defined as a large area of sustained winds greater than 74 miles per hour.This is the wind speed at which ______________________.

A) canvas sails on sail boats start to rip
B) storm surge starts to be a problem
C) Saffir and Simpson agreed to compromise (Saffir wanted 72 mph,and Simpson wanted 76 mph)
D) the center of the storm develops a calm area known as the eye
E) atmospheric particles collide and coalesce