A can do 40%, of a work in 24 days., and B can do $$33\frac{1}{3}$$ of the same work in 15 days. They work together for 15 days. C alone completes the remaining work in 10 days. A and C together can complete 35% of the same work in:

A

7 days

B

6 days

C

8 days

D

5 days