Anay does the 5/11th part of the work in 10 days and Rohan does the 5/6th of the same work in 15 days. They started together but Rohan left the work 5 days before the completion of the work and Anay completed the work. Find the number of days after which Rohan left work.

A

177/20 days

B

140/9 days

C

153/20 days

D

186/9 days