Why does the mother country (England, Spain) benefit from mercantilism?

according to classical republican political theory, which democratic republics would function best?

a.   small republics, with people who had similar interests

b.   large republics, with people who had competing interests

c.   republics made up entirely of landowners

d.   republics made up entirely of servants

anyone me i need

where is the passage

answer; exploratory;