A and B can do a piece of work in 36 days and 48 days, respectively. They work together for 12 days. The remaining work is completed by C alone in 10 days. A and C together can complete 62.5% of the original work in:

A

9 days

B

$$12\frac{1}{2}$$

C

$$14\frac{2}{5}$$

D

10 days