A primary election is the

Im pretty sure it is C.

Explanation:

Primary elections, are usually to like choose the canidates running. Like, have you ever heard of the democratic primarys, or something like that.

protected civil liberties and outlawed slavery in the new territories.

the church governed the society after the empire fell.   constantine took charge of rome and ended the confusion which had over religion and made christianity as the only religion and that started ruling the roman empire. he also divided the empire into two and fortified the eastern part.   he ruled the eastern part.