A solid conducting disc of radius 0.20m rotates with constant angular speed about a vertical axis through its centre. When viewed from above, the disc rotates clockwise. A uniform magnetic field of 0.30T is directed upward along the axis. Which one of the following correctly describes the induced current in the disc?
(a) Along the tangential direction clockwise
(b) Radially inward from the rim toward the centre
(c) No current is induced in the disc
(d) Radially outward from the centre toward the rim