For what values of $k$ will the equation $x^2+k(4x+k-1)+2=0$ have equal roots?

Question

$\begin{array}{1 1}(A) \; k=\large\frac{2}{3}\normalsize \text{or }-1\\(B)\;k=\large\frac{-2}{3}\normalsize \text{or }-1 \\(C)\;k=\large\frac{-2}{3}\normalsize \text{or }1 \\(D)\;k=\large\frac{2}{3}\normalsize \text{or }1 \end{array}$