When 1 is added to to $$\frac{13}{15}$$ th part of $$\frac{7}{8}$$ then it is equal to n-th part of $$\frac{13}{7}$$ Then n=

A

$$\frac{1560}{1477}$$

B

$$\frac{211}{1560}$$

C

$$\frac{1477}{1560}$$

D

$$\frac{7}{120}$$