If $$\left(\frac{1}{1 + \cosec \theta} - \frac{1}{1 - \cosec \theta}\right) \cos \theta = 2, 0^\circ < \theta < 90^\circ$$, then the value of $$\sin^2 \theta + \cot^2 \theta + \sec^2 \theta$$ is:

A

$$3\frac{1}{2}$$

B

1

C

2

D

$$2\frac{1}{2}$$