d
For the system to be consistent $\Delta=0$
$\Rightarrow\left|\begin{array}{lll}{1} & {k} & {1} \\ {k} & {1} & {2} \\ {1} & {1} & {k}\end{array}\right|=0$
$\Rightarrow(k-1)\left(k^{2}+k-3\right)=0$
$\Rightarrow \mathrm{k}=1$ or $\mathrm{k}^{2}+\mathrm{k}-3=0$
But if $\mathrm{k}=1$ equations will have no solution
$\Rightarrow \mathrm{k}^{2}+\mathrm{k}=3$
Further if $\mathrm{k}^{2}+\mathrm{k}=3$ then none of the pair of lines are parallel
$\Rightarrow \mathrm{k}_{1}^{2}+\mathrm{k}_{2}^{2}=7$