$\begin{array}{1 1}(A)\;p = 4\: units\: and \: \alpha = 120^{\circ} \\(B)\; p = 4\: units\: and \: \alpha = 60^{\circ} \\(C)\; p = 8\: units\: and \: \alpha = 120^{\circ} \\(D)\;p = 8\: units\: and \: \alpha = 60^{\circ} \end{array} $