Two Cars Are Traveling Down the Highway in the Same $\times$

Two cars are traveling down the highway in the same direction.Car A is traveling at 30.0 m/s and car B is passing car A at a relative speed of 3.0 m/s.Using Galilean relativity to calculate the speed of car B relative to the highway results in an answer incorrect by how many m/s?

A) 3.3 $\times$ 10^-2
B) 3.3 $\times$ 10^-5
C) 3.3 $\times$ 10^-8
D) 3.3 $\times$ 10^-11
E) 3.3 $\times$ 10^-14