A flat surface of a thin uniform disk A of radius R is glued to a horizontal table. Another thin uniform disk B of mass 𝑀 and with the same radius 𝑅 rolls without slipping on the circumference of A. A flat surface of B also lies on the plane of the table. The center of mass of B has fixed angular speed 𝜔 about the vertical axis passing through the center of A. The angular momentum of B is 𝑛𝑀ω𝑅^2 with respect to the center of A. Which of the following is the value of n?