The answer would be : ranchers' refusal to use technology. During the late 1880s, the technologies began to rapidly developed within the industry. But back then, a lot of ranchers are really comfortable in using traditional ways (using slaves) and they refuse to use technology
The answer is C. Capitalism.
The Canadian government turned them away.
Answer:
The field of national security safeguards against such threats. National security protects not only citizens but also the economic stability of national institutions. In the U.S., national defense has been a guiding principle of the government at least since 1947, when then-President Harry S. Truman signed into law the National Security Act. Among other things, this legislation created the secretary of defense cabinet position, under whose leadership all branches of the military operated.