find out the distance between crank centre to lever centre point

Question

A simple quick return mechanism is shown in the figure. The forward to return ratio of the quick return mechanism is 2 : 1. If the radius of the crank O₁ P is 125mmm, then the distance ‘d’ (in mm) between the crank centre to lever pivot centre points should be                                                                                                                                       

 

      (a) 144.3                                                             (b) 216.3

      (c) 240.0                                                             (d) 250.0