If $$3\sqrt{\frac{1-a}{a}} + 9 =19 - 3\sqrt{\frac{a}{1-a}}$$, then what is the value of $$a$$?

A

$$\frac{3}{10}, \frac{7}{10}$$

B

$$\frac{1}{10}, \frac{9}{10}$$

C

$$\frac{2}{5}, \frac{3}{5}$$

D

$$\frac{1}{5}, \frac{4}{5}$$