The drawing shows velocity (v) versus time (t) graphs for two cyclists moving along the same straight segment of a highway from the same point. The second cyclist starts moving at t = 3.0 min.
[Figure: Velocity vs time graph showing two cyclists' motion]
At what time do the two cyclists meet?
(a) 4.0 min;
(b) 6.0 min;
(c) 12 min.