With the founding of the Holy Roman Empire would be my best guess
D)they wanted to give freed slaves a path to equality
Assuming you're referring to the period of Ancient Rome, it was generally not a good idea for the censors to rank and re-rank citizens into different classes because it bred animosity between the classes, which led to domestic uprisings and disorder.
Food giveaways, food stamps, subsidized housing, farm aid, and legal aid, the first three are most common along with legal aid.
The 5 power limitation treaty was a treaty among the major nations that had won World War I, which agreed to prevent an arms race by limiting naval construction. It also had many names like the Washington Naval Treaty, the four power treaty, and the nine power treaty.