Immigration does not fall under the domestic policy. A domestic policy differs from foreign policy, which refers to the ways a government advances its interests in world politics.
Its D. A republic means that the people decide on things.
Nationalist<span> teneion </span>emerged in the Balkans<span> because the </span>Balkan<span> states were aspiring for </span>nationalism<span>. The </span>Balkans<span> was a region comprising modern day Romania, Bulgaria, Albania, Greece, ... The rebellions nationalities in the </span>Balkans<span> thought that their struggle was the attempt to win back their long-lost independence</span>