The correct answer is <span>B. The New Deal</span>
I'm going to say C since I looked up the question, but warning you , I may be wrong
Answer:
1. primary source materials.
2. historiography
Explanation:
Well if your talking about today then the most prevalent is a tie between social media, and the news. But <span>if your talking about like World War l, for example, then posters were prevalent in Britain and Germany because they could target at any audience.</span>