A wire is $1$ m long and $1{10}^{-6}{m}^2$ in cross$-$sectional difference of $2$ V $,$ a current of $4$ A exists in the wire. $T$

A$)2{10}^{-6}*m$

When connected to a potential sistivity of this wire is:

B$)8{10}^{-6}*m$

C$)1{10}^{-7}*m$

D$)4{10}^{-7}*m$

E$)5{10}^{-7}*m$