Evaluate $\large \int \limits_{\normalsize 0}^{\frac{\pi}{2}}$$\bigg (\sqrt {\tan x} + \large\frac{1}{\sqrt {\tan x} }$$\bigg)\;$$dx$

Question

(A) $\pi \quad$ (B) $\large\frac{2}{\sqrt \pi} \quad$ (C) $\pi \sqrt 2 \quad$ (D) $\large\frac{\sqrt \pi}{2}$