Question

What was the most prevalent propaganda media form?

Answer 1

I would say either well-known News platforms like Fox and CNN and also social media like Instagram and Facebook. Sometimes its hard to spot propaganda though so sometimes you have to look deeper into sources to see through it.

Answer 2

Propaganda has been spread around for years, you can see a lot of it in politics. Since politics have played a big factor in the world, for many years.

Answer 3

The question asks "was", so does this talk about a particular time period? As motes67 said, propaganda has existed through most of history. Depending on the time period, the answer might be different.
Like, bizaardvark mentioned, if the question is about modern times, we might look to news outlets or social media. If it is about the past, we might want to go with something else