The center of mass of three particles of masses 1 kg,2 kg and 3 kg is at (2,2,2). The position of the fourth mass of 4 kg to be placed in the system as that the new center of mass is at (0,0,0) is :

Question

$$\begin {array} {1 1} (a)\;(-3,-3,-3) & \quad (b)\;(-3,3,-3) \\ (c)\;(2,3,-3) & \quad (d)\;(2,-2,3) \end {array}$$