1st green vehicle arriving on the left, 2nd oncoming, green vehicle, 3rd orange truck, 4th your car .        
               
     
                                             1st oncoming, green vehicle, 2nd green vehicle arriving from the left, 3rd orange truck, 4th your car .        
               
     
                                             1st green vehicle arriving on the left, 2nd oncoming, green vehicle, 3rd your car, 4th orange truck .        
               
     
                                                                       Correct answer :a