Asystem that requires that a person choose a mate outside of particular groups, like one’s family. a. polyandry b.nuclear family c.matrilineal descent d.endogamy

The only option that dictates marrying a person from a particular group is endogamy. Endogamy requires a person to marry within a specific ethnic, racial, and/or caste group.
Nuclear family is one or both parents loving with their children. Matrilineal descent is inheritance and ancestry traced through the female side of a family. Polyandry is a form of polygamy in which one woman has multiple husbands.

C

Explanation:

Diocletian immediately set to work re-drawing the borders of the empire's provinces and organizing the provinces into new administrative units. He then reorganized the military, building up a stronger imperial army that fought major battles to reassert Roman dominance of disputed border regions.