Endogamy is the practice of marriage within a certain group. Therefore. A is out. Polydomous has something to do with species of animals inhabiting several nests. B is out. Polygamy is having more than one partner at a time, without anyone's consent. Therefore, C is out. Exogamous has to do with marriage only permitted outside of the group, not in the group. D works, but let's check E. Monogamous has to do with marriage to only one person at a time, which is not the best answer for this question. So the answers is D: exogamous.
#12 is sixth smallest country
#13 is southern and eastern
The most stress and unhappiness in her marriage is during
the childrearing years by which Margo will have no time for herself as she is
too busy taking care of her children and the responsibilities that she needs to
do as a wife and as a mother.