Two pieces of can full a tank in 10h and 16 h respectively. A third pipe can empty the tank in 32 h. If all the three pipes function simultaneously, then in how much time the tank will be full?? (in h)

A

$$7\frac{11}{21}$$

B

$$7\frac{13}{21}$$

C

$$8\frac{14}{21}$$

D

$$6\frac{5}{14}$$

E

$$8\frac{9}{14}$$