It must be c the sinking of the lusitania
I think its D: The Red Sea
D. The elimination of social distinctions between the middle and working class.
It's definitely A as one answer, but I'm unsure about the other answer. But I can almost 100% say that C is most likely the second answer. I hope I helped in some ways!
A one-party system, since a dictator is usually one single person/group.
