The correct answer here would be A.
Political stability would be a characteristic of both Pax Romana and Pax Mongolia. Of course over their long histories both the Mongol and Roman Empire had some political divisions and troubles but on the whole the political situation was stable and it functioned as intended. There weren't that many attempts to overthrow the governments from within, much less those that succeeded.
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is there a little bit of more information
Public schools cannot promote religion, but they must allow students allow to practice their faith. school-sponsored prayer in public schools was banned by the supreme court in 1962. if it is a specific topic, like abortion, then no they cannot get in trouble because they are not forcing it or promoting it. simply teaching about it.
C. Fur trading because they used to use the skins of animals such as beavers
the north had more people and less farmland so they didnt have the need for slaves therefore they thought that people didnt need slaves. meanwhile the south had mor farmland and a higher need of slaves