If A, B and C can do a work in 6 days, 9 days and 11 days, respectively, then, working together, how many days will they take to do the work?

A

$$1\frac{52}{73}$$

B

$$4\frac{52}{73}$$

C

$$2\frac{52}{73}$$

D

$$3\frac{52}{73}$$