15. Which factor contributed to the end of the open range in the American West?
A. a decline in population in eastern market cities
B. the widespread use of barbed wire fencing C. the transition of ranching areas to industrial use
D. a popular shift in diet among consumers of meat
16. What is the subject of this 1872 painting?
A. invention of the railroad
B. evolution of westward migration
C. religious influence of the Puritans
D. protection of national parks
17. Which policy did Bryanmostly promote in his “Cross of Gold” speech?
A.an expansion of the money supply
B. a minimum hourly wage for all workers
C. legal rights to strike and bargain collectively
D. a reduction in business profits to pay workers better
