On a large tray of mass M an ice cube of mass m, edge L is kept. If the ice melts completely, the centre of mass of the system come down by

Options

A. `(mL)/(2(M+m))`
B. `((M-m)L)/(2(M+m))`
C. `((M+2m)L)/(2(M+m))`
D. `(2ML)/(M+m)`

Answer

A