The correct answer to the first question is A : decreased unemployment.
The German unification in 1990 came at a significant cost to the German economy. Before unification the unemployment rate in West Germany had been 5%. After the unification, it increased up to 20% in some of the new lands, although it stabilized itself later at 10%. Major factors contributing to the increase were : the merging of West and East Germany currencies and very low lever of productivity in the former East Germany.
The correct answer to the second question is C : supranationalism.
A supranational union is a type of multinational political union where negotiated power is delegated to an authority by governments of member states. A supranational organisation must operate in multiple countries.
The United Nations and its subsidiaries are created by groups of member nations and work across the member nations' borders.
In the European Union each member state votes on policy that will affect each member nation.