$$\frac{2}{\sqrt{5}}, 1, \frac{8}{\sqrt{5}}, \frac{11}{5}, --------$$

A

$$\frac{4}{\sqrt{5}}$$

B

$$\frac{3}{5 \sqrt{5}}$$

C

$$\frac{14}{5 \sqrt{5}}$$

D

$$\frac{15}{\sqrt{5}}$$