Which of these describes the Great Western Cattle Trail?
A) It was financed by the U.S. government to keep the land away from the Indians.
B) It made it possible to ship cattle to San Francisco for export across the Pacific.
C) It was a trail that connected the stockyards of Chicago with the seaport of New York.
D) It was a trail used to drive cattle from ranches as far away as Montana and Wyoming to railroad stations in Kansas and Nebraska.