A pole 23 m long reaches a window which is 3 $$\sqrt{5}$$ m above the ground on one side of a street. Keeping its foot at the same point, the pole is turned to the other side of the street to reach a window 4 $$\sqrt{15}$$ is m high. What is the width (in m) of the street?

A

17

B

35

C

39

D

22