Two cars `S_(1)` and `S_(2)` are moving in coplanar concentric circular tracks in the opposite sense with the periods of revolution 3 min and 24 min, respectively. At time t = 0, the cars are farthest apart. Then, the two cars will be

Options

A. closest to each other at t = 12 min and farthest at t = 18 min.
B. closest to each other at t = 3 min and farthest at t = 24 min
C. closest to each other at t = 6 min and farthest at t = 12 min
D. colsest to each other at t = 12 min and farthest at t = 24 min

Answer

D