As shown in figure, a person A is standing at the centre of a rotating platform facing person B who is riding a bicycle, heading East. The relevant speeds and distances are shown in given figure person, a bicycle, heading East. At the instant under consideration, what is the apparent velocity of B as seen by A?
(a) 3 m/s heading East
(b) 3 m/s heading West
(c) 8 m/s heading East
(d) 13 m/s heading East