Answer: If the hurricane traveled 279 miles in 3 hours. then his velocity is 279/3 miles per hour = 93 miles per hour.
if the rate increases by 6%, then the velocity at which is moving increases by 6%, then the velocity is 1.06*93 miles per hour = 98.58 miles per hour.
with this velocity, in the lapse of 5 hours the hurricane will travel 5*98.8 miles = 492.9.
So the correct option is D.