Two Cars Are Traveling Down the Highway in the Same $30.0 \mathrm{~m} / \mathrm{s}$

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

A) $3.3 \times 10^{-5} \mathrm{~m} / \mathrm{s}$
B) $3.3 \times 10-11 \mathrm{~m} / \mathrm{s}$
C) $3.3 \times 10-14 \mathrm{~m} / \mathrm{s}$
D) $3.3 \times 10^{-2} \mathrm{~m} / \mathrm{s}$
E) $3.3 \times 10^{-8} \mathrm{~m} / \mathrm{s}$