$^nC_1$ + $2.^nC_2$ + $3.^nC_3$ + ..... + $n.^nC_n$ = ?

Question

$\begin{array}{1 1} n.2^n \\ n.2^{n-1} \\ (n+1).2^n \\ (n-1).2^{n} \end{array}$