I think it's D. hopefully this helps
Which of what following???
The correct answer is b.He used anti-Hitler slogans to promote alliances.
This way everyone believed that he was a good guy who helped because he wanted to stop Hitler. He stopped him but in the meantime annexed many countries and imposed the will of USSR upon many.
The scale does. When you know the scale it is easy to calculate the real distance. If the scale is 1 : 1000, that means that 1cm on the map is equal to 1000cm in real life.