Question

The county cleared this "path and paved" it with packed gravel, so they would have a peaceful place to hike and bike.

Answer 1

I think D because it sounds choppy and not complete if you add that to the sentence instead of the others

Answer 2

I believe that the answer is D. Because when you apply that to the text it doesn't make sense. The other choices DO make sense. So the answer would be D.
The county cleared this "path paved" it with packed gravel, so they would have a peaceful place to hike and bike.
hope this helps!