Evaluate : $\cos\; \large \bigg( \frac{\pi}{2} -$$ \cos^{-1}\; \large\bigg (-\frac{\sqrt 3}{2}\bigg)\bigg)$

Question

$(A)\; \large\frac{1}{2} \\ (B)\; -\large\frac{1}{2} \\ (C)\; 1 \\ (D)\;\large\frac{3}{2} $