You Can Pay a Lot of Money for Fancy Connecting $\rho$

You can pay a lot of money for fancy connecting cables between your audio/video equipment components.Some of the more expensive ones use silver wire rather than copper.Calculate the difference in resistance between a silver and a copper cable with the same 12-gauge diameter of 2.05 mm and length of 3 m (hence total length = 6m) .(Use $\rho$ (Cu) = 1.7 $\times$ 10^-8 $\Omega$ /m and $\rho$ (Ag) = 1.6 $\times$ 10^-8 $\Omega$ /m.Unfortunately (or fortunately) ,there are many other factors that go into making an interconnect cable than simple resistance considerations.)

A) 4.1 $\times$ 10^-3 $\Omega$
B) 1.8 $\times$ 10^-3 $\Omega$
C) 2.9 $\times$ 10^-2 $\Omega$
D) 9.0 $\times$ 10^-4 $\Omega$
E) 3.1 $\times$ 10^-2 $\Omega$