Arrange the following fractions in ascending order: $$\frac{2}{3}, \frac{1}{6}, \frac{5}{9}$$ and $$\frac{7}{12}$$

A

$$\frac{1}{6}, \frac{5}{9}, \frac{2}{3}, \frac{7}{12}$$

B

$$\frac{1}{6}, \frac{5}{9}, \frac{7}{12}, \frac{2}{3}$$

C

$$\frac{5}{9}, \frac{1}{6}, \frac{7}{12}, \frac{2}{3}$$

D

$$\frac{5}{9}, \frac{2}{3}, \frac{1}{6}, \frac{7}{12}$$