The correct answer is A) The increased use of barbed wire fencing blocked cattle drives.
The statement that describes one reason for the end of long cattle drives is "The increased use of barbed wire fencing blocked cattle drives."
The cattle drive was the process in which cowboys moved large numbers of cattle, an entire herd, from one place to the other. It was an important economic activity in the American West from around 1866 to 1895. Cattle drive had many routes such as the Potter Bacon trial, the Goodnight-Loving trail or the Western trail. But the increased use of barbed wire fencing blocked cattle drives to protect private property.
