Four small spheres each of radius .r. and mass .m. are placed with their centres at the four corners of a square of side .L.. The M.I. of the system about any side of square is

Options

A. `(8mr^(2))/(5)+mL^(2)`
B. `(8mr^(2))/(5)+2mL^(2)`
C. `(5mr^(2))/(8)+mL^(2)`
D. `(5mr^(2))/(8)+2mL^(2)`

Answer

B