If $$\frac{\tan \theta}{1 - \cot \theta} + \frac{\cot \theta}{1 - \tan \theta} = 1 + k$$, then k = 

A

$$\cot \theta + \sec \theta$$

B

$$\tan \theta + \sec \theta$$

C

$$\tan \theta  \cosec \theta$$

D

$$\cosec \theta  \sec \theta$$