Answer:
The imaginary line of Demarcation was drawn from the north to the south through the Atlantic Ocean, splitting it between Portugal and Spain.
That statement IS arguable because not everyone would agree and also NOT defensible since theres no proof to back it up with, so the answer would be (D)
15+25+35+45=120 120 divide 4 = 30
D) it protects our nation
Circumstances such as sudden poverty, physical abuse (struck at least 3 times by their husband), overall neglect (husband is lazy), dishonor brought upon the woman's family, or if their husband settled in a new country and neglected to go to bed with them for 3 years. (source: https://en.natmus.dk/historical-knowledge/denmark/prehistoric-period-until-1050-ad/the-viking-age/th...)
(other source: http://www.viking.no/e/life/ewomen.htm)
These were some of the answers based on information online, but your teacher may be expecting other ones. In general, neglect or maltreatment/abuse would be grounds for a divorce.