Factorize : $x^2+3 \sqrt 3 x+6$

Question

$\begin{array}{1 1} (x+2\sqrt 3)(x-\sqrt 3) \\ (x+2\sqrt 3)(x+\sqrt 3) \\ (x+2\sqrt 3)^2 \\ (x-2\sqrt 3)^2 \end{array}$