Four particles of masses m, 2m, 3m and 4m are arranged at the corners of a parallelogram with each side equal to a and one of the angle between two adjacent sides is `60^(@)`. The parallelogram lies in the x-y plane with mass m at the origin and 4 m on the x-axis. The centre of mass of the arrangement will be located at

Options

A. `((sqrt3)/(2)a,0.95a)`
B. `(0.95a,(sqrt3)/(2)a)`
C. `((3a)/(4),(a)/(2))`
D. `((a)/(2),(3a)/(4))`