What Lessons About Public Opinion Can We Draw from the Federalist

What lessons about public opinion can we draw from The Federalist Papers?

A) Public opinion can easily be swayed by skillful arguments.
B) American public opinion from the beginning has been treated as a political force to alternatively be shaped, mollified, or exploited.
C) During the earliest days of the republic, political elites paid little attention to public preferences since most of the nation was illiterate.
D) Public opinion has only played a role in American politics since the advent of scientific polling methods in the twentieth century.