Which of the following best characterizes Americans' knowledge of public affairs today?

a. Americans are consistently shown to be among the most well-informed when compared to people in other democracies.
b. Millennials are better informed than older generations by a wide margin.
c. Most Americans today are far better informed than previous generations, though knowledge levels are still rather low.
d. Misinformation is now at its highest level in the history of polling.
e. Baby boomers have been shown to be the most well-informed generation, while younger generations know little about public affairs.