Reduce the following equation into normal form. Find their perpendicular distances from the origin and angle between perpendicular and the positive $x$ - axis. $y-2=0$

Question

$\begin{array}{1 1}(A)\;p = 1\: units\: and \: \alpha = 90^{\circ} \\(B)\; p = 2\: units\: and \: \alpha = 60^{\circ} \\(C)\; p = 2\: units\: and \: \alpha = 120^{\circ} \\(D)\;p = 2\: units\: and \: \alpha = 90^{\circ} \end{array}$