Answer:
D. barbed wire
Step-by-step explanation:
During the traditional period, farmers had to fence their farms to protect their crops from livestock. However, as time went by, ranches were built and replaced the traditional fences. The ranches, therefore, utilized the barbed wire and kept livestock away from the farms.
The common ranches included the XIT and Frying Pan that was served to demonstrate the benefits of the cowmen. Moreover, because of this, produced the harbingers of the new frontier. Therefore, fencing was one of the best methods of keeping livestock away from the farm.