The volume of a metallic cylindrical pipe is 1232 $$cm^{2}$$. If its external radius is 7 cm and thickness is 2 cm, then the length of the pipe (correct to one decimal place) (in cm) is: (Take $$\pi=\frac{22}{7}$$)

A

18.5

B

17.2

C

16.3

D

14.2