If sec$$\theta=\frac{13}{12}\ and\ \theta\ $$is acute, then what is the value of $$(\sqrt{cot\theta+tan \theta})$$?

A

$$\frac{13}{2\sqrt{15}}$$

B

$$\frac{12}{2\sqrt{13}}$$

C

$$\frac{13}{2\sqrt{5}}$$

D

$$\frac{2}{13}$$