Which type of law would help settle a disagreement over property between citizens?

What is the main idea of this excerpt? 1.1.3

The holocaust of world war ii resulted in a) the nazis effectively used propaganda to gain and hold power in germany. b) ethnic regimes carried out mass devastation. c) deporting all european jews to the island of madagascar. d) the systematic mass slaughter of european jews and and others in nazi concentration camps during world war ii.

Under the new imperialism europe did not need large numbers of people to control territories because of