"C. was overthrown by invading Mongol tribes in A.D. 1279" would be the best phrase describing China's Song Dynasty, but this was of course not always the case.
Answer:
It started in September, 1944. London called for a railway strike, and the German troops had to transport stuff.
Explanation:
Becuse they do not belive in limitations of power and feel like power should be concetrated
etiher a or b is the good answer
