A mass $$M$$ hangs on a massless rod of length $$l$$ which rotates at a constant angular frequency. The mass $$M$$ moves with steady speed in a circular path of constant radius. Assume that the system is in steady circular motion with constant angular velocity $$\omega$$. The angular momentum of $$M$$ about point $$A$$ is $$L_A$$ which lies in the positive $$z$$ direction and the angular momentum of $$M$$ about $$B$$ is $$L_B$$. The correct statement for this system is: