In each of the situations shown in column $I$, the rods are massless and all the $4$ masses are having mass $m$ each. Masses are attached to the rod and are very small in size. The rods are free to rotate and translate on smooth horizontal ground. If more than one collision occur, they are of same nature.

	Column $I$		Column $II$
(A)		(P)	After all the collisions are over, rods are rotating
(B)		(Q)	After all the collision are over, the rods are only translating not rotating
(C)		(R)	The rods will be in tension for a part of the motion.
(D)		(S)	Rotational kinetic energy of system increases just after collision.
		(T)	Rotational kinetic energy of system decreases just after collision.