Find the equation of lines passing through (1, 2) and making angle $30^{\circ}$ with $y$ - axis.
$\begin {array} {1 1} (A)\;y+\sqrt 3 x - 2 - \sqrt 3=0 & \quad (B)\;y-\sqrt 3 x + 2 + \sqrt 3=0 \\ (C)\;y-\sqrt 3 x - 2 + \sqrt 3=0 & \quad (D)\;y-\sqrt 3 x - 2 - \sqrt 3=0 \end {array}$