If the refractive index of the material of a prism is $$\cot\left(\frac{A}{2}\right)$$, where $$A$$ is the angle of prism then the angle of minimum deviation will be

A

$$\pi - 2A$$

B

$$\frac{\pi}{2} - 2A$$

C

$$\pi - A$$

D

$$\frac{\pi}{2} - A$$