An executive earns a salary of Rs 12,600 every month, and he spends 5/7 of it. If his ssalary increases by 1/3rd and his spending increases by 1/5th of the present expenditure, what fraction of his salary will he save?

Options

A. `5//14`
B. `7//16`
C. `7//15`
D. `8//15`