A uniform thin rod of mass M and length L is standing vertically along the Y-axis on a smooth horizontal surface with its lower end at origin (0, 0). A slight disturbance at t 0 causes the lower end to slip on smooth surface along the positive X-axis and the rod starts falling. The path followed by the centre of mass of the rod during its fall is a/an.
(A) Straight line
(B) Parabola
(C) Ellipse
(D) Circle
