Answer:
C. Communist party.
Explanation:
The people who were suffering during "great depression" especially the ones who were jobless and homeless joined hands with the communist party to claim their rights as they were the most likely ones who could help them. They together observed the "International Unemployment Day" as a mark of protest and also came forward with an idea of "unemployment insurance" for the jobless. They demanded both work relief(jobs for the poor) and home relief(who could not work). Thus, we may conclude that only the communist party had the strength to counter the political institutions and assist them(the sufferers) to demand their rights and show some courage to fight for it.
