$$\lim_{n \rightarrow \infty}\left\{\frac{1}{5.9} + \frac{1}{9.13} + \frac{1}{13.17} + \cdot\cdot\cdot + \frac{1}{(4n+1)(4n+5)}\right\}=$$

A

0

B

$$\frac{1}{5}$$

C

$$\frac{1}{20}$$

D

$$\frac{1}{36}$$