Motor vehicle in closed wagon shall be attached ________ position from engine on a goods train. A. First B. Second C. Third D. None of these

The second position is not a safe position for the motor vehicle, as it is more likely to be involved in a collision. The third position is also not a safe position for the motor vehicle, as it is more likely to be involved in a collision.

Option D is incorrect, as it is not a valid option.