D. the magnetic compass and gunpowder
By using the money that he has already and fixing the problem and if he can't then he will keep a promise that he will fix all their problems.
Well after gaining the right to vote, women began expressing their want for equality in other areas and went after it.
In 1949, the prospect of further Communist expansion prompted the United States and 11 other Western nations to form the North Atlantic Treaty Organization (NATO). The Soviet Union and its affiliated Communist nations in Eastern Europe founded a rival alliance, the Warsaw Pact, in 1955.
I hoped helped you and good Luke