angular velocity of the eccentric circular disc

Question

1. In the mechanism given below, if the angular velocity of the eccentric circular disc is 1 rad/s, the angular velocity (rad/s) of the follower link for the instant shown in the figure is                                                  

   

                           

Note: All dimensions are in mm

      (a) 0.05                                                               (b) 0.1

      (c) 5.0                                                                 (d) 10.0