feeders on the side of the road lights along the side of the road signs telling drivers to be careful of deer bridges that let the deer walk under the road
I gave my students this multiple choice question: A town built a road through a forest. Deer live in the forest on both sides of the road. Which would not help protect deer from the cars on the road?

Only one answer is correct among these 4 choices:
- feeders on the side of the road
- lights along the side of the road
- signs telling drivers to be careful of deer
- bridges that let the deer walk under the road

Could you tell me which one is correct?

feeders on the side of the road