Question

Which development helped make the cattle business on the Great Plains profitable?

A. Native Americans developed a taste for beef and bought entire herds.
B. Workmen on the transcontinental railroad used cattle to pull heavy wagon loads.
C. Barbed wire fencing made it easier to drive cattle herds long distances.
D. Growing populations in eastern cities greatly increased the demand for beef.

Answer 1

D. Growing populations in eastern cities greatly increased the demand for beef.

Step-by-step explanation:

Answer 2

It was primarily that "D. Growing populations in eastern cities greatly increased the demand for beef," since along with the advent of the rail lines, getting the meat to the consumer was far easier.