Which of these examples is reflective of civic involvement in political discourse?

Contributing to a blog

Soapboxing" or public speeches

Calling in to Talk Radio programming

all of the above

Considering that contributing to a blog can be a form of civic discourse, public speeches might raise awareness of important issues and even calling in to Talk Radio programs is just one of the ways to make your voice to be heard, you can conclude that in the end, those are all ways of involvement in political discourse.

The correct answer is:

all of the above