15 men complete a work in 10 days. 15 women complete the same work in 12 days. If all these men and women work together, then the number of days required to complete that work is:

A

$$5\frac{5}{11}$$

B

$$4\frac{3}{11}$$

C

$$7\frac{2}{11}$$

D

$$6\frac{4}{11}$$