Two copper wires, one with twice the diameter of the other, have the same current flowing through them. If the thinner wire has a drift velocity v₁, and the thicker wire has a drift velocity v₂, how do the drift velocities compare?

A. V₁=V₂
B. V₁= 2V₂
C. 2V₁=V₂
D. V₁=4V₂
E. 4V₁=V₂