Which of the following conditions most clearly helped political machines rise to power in the late 19th century?
A. Patronage among political officials
B. Monopolies in big business
'C. Industrialization of farms
D. Poverty among urban workers

maybe you should ask google for the answer for the question you're looking for

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

i hope this : )

the answer to your question is a because laws act as guidelines as to what is accepted in society. without it there would be conflicts between social groups and communities. it serves as a norm of conduct for citizens.