The correct answer is D.
Both in Germany and in occuppied European territories, the Nazis created ghettos to confine and separate Jews from the rest of the population. These were small and highly overpopulated neighbourhoods in each town or city, that were denominated Jewish Quartiers (this is the translation of the German term). The nazis defined different types of ghettos: open ghettos, closed ghettos, work, transit, and destruction ghettos.
Later on, the Jewish population who lived on these ghettos were deported to concentration and extermination camps, for the last phase in the so-called Final Solution.
