I'd say C for 10, D for 11, and A for 12.
But you might want a second person to verify.
This is homework help, not ‘write my essay for me.’ You need to do it yourself. As for propaganda posters, their main function is to get people to believe a specific thing.
Your answer is -C-. the Berlin blockage ⊂( ≥ ω ≤ )⊃
A, the government should regulate the economy.