If $$A = \sqrt{7} - \sqrt{5}, B = \sqrt{5} - \sqrt{3}, C = \sqrt{9} - \sqrt{7}$$ and $$D = \sqrt{11} - \sqrt{9}$$, then which one of the following is a correct ordering?

A

$$B < A < C < D$$

B

$$A < C < B < D$$

C

$$C < D < A < B$$

D

$$D < C < A < B$$