Pipe A can fill an empty tank in 6 hours and pipe B in 8 hours. If both the pipes are opened and after 2 hours pipe A is dosed, how much time B will take to fill the remaining tank?

A

2$$\frac{2}{5}$$ hours

B

7$$\frac{1}{2}$$ hours

C

2$$\frac{1}{3}$$ hours

D

3$$\frac{1}{3}$$ hours