Answer:
The Song dynasty lasted more than 300 years.
The Tang ruled China between the seventh and tenth centuries.
The Song dynasty ended in 1279.
Explanation:
1) The Song dynasty ruled China from 960 to 1279 (319 years).
2) The Tang dynasty ruled China from 618 to 907 (289 years).
3) The Song dynasty ruled China after the Tang Dynasty.
4) The Song dynasty ended in 1279.
Your answer is going to be B) The League of Nations
I think it's whom because it makes more scenes that way.
Here's a sentence: The United States has to care about national security but also keep it's treaty with other countries.
