Suppose a bulldozer is being hauled on the back of a flatbed truck at 50 km/h to a construction site. From which reference point would the bulldozer not appear to be moving? A. the road

B. a traffic light

C. the truck driver

D. a roadside tree

The truck driver
Explanation: the distance between the truck driver & bulldozer will remain the same throughout the journey as it’s being placed on the back of the truck.

Hope this helps ʕ•ᴥ•ʔ

Answerdormitories;

Which of the following is an example of an opposing signal? no examplthates given.   i would say, that traffic lights in a city at major intersections direct the flow of traffic in opposite directions so would be an example.also, stop signs on either side of the same street would be an example. at a train crossing, the light for allowing car traffic in opposite directions or not would be another example.