Agriculture and animal husbandry.
The people could now live in one place. The rich and fertile land and rivers produced a surplus of food and water.
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The development of barbed wire in the 1870s changed the cattle ranching industry by allowing the cattle ranching owners that have large ranches to enclose their own territory in which allowed them from eliminating the possible competition in regards of the resources. It is because the barbed wire in the 1870s serves as an important tool that ranchers could use as a way of protecting their animals in the barn from predators capable of killing their animals and from also preventing other people from trespassing without their permission.
Answer:
Answer is B, a public good dilemma.
Explanation:
Public good dilemma is a type of social dilemma, which involve the decision of members of a group decide the outcome for any individual.
Its characteristics is that anyone can benefit from their decision at the same time.
The answer to your question is A
