You wish to overtake a farm tractor with a mounted implement extending beyond its back. What must you remember?

The correct response highlights two important safety considerations when overtaking a farm tractor with an implement. First, the mounted implement can indeed swing out when the tractor makes turns, presenting a danger if you are not aware of it. This is a critical safety factor because it may lead to collisions if the overtaking driver assumes the implement remains in a fixed position.

Second, the visibility of the rear lights may be compromised due to dirt or obstructions. If you can't see the direction signals, you may misjudge the tractor's movements, increasing the risk of an accident.

The incorrect option, which suggests that farm tractors can always be overtaken safely because of their low speed, is misleading. Low speed does not guarantee safety when overtaking. Factors like the width of the road, the behavior of the tractor, and the presence of other vehicles can all affect the safety of such maneuvers. Thus, understanding the specific behaviors and potential risks associated with farm tractors is essential for safe driving in these situations.