Answer:
The correct answer is 3. What did the most to bring the open range to an end was the building of barbed-wire fences.
Explanation:
It was denominated "open range" to the vast extensions of earth without fencing, and therefore without owner, existing in the American West during the 1800s. These lands were used by cowboys to graze their cattle, and led to numerous conflicts over the ownership of these lands.
The use of barbed wire fences, with the consequent delimitation and aporpiacion of the lands, took to the end of the existence of the open range.
