The correct answer is C) its geography and location facilitated migration.
Eastern Europe became home to so many ethnic groups because its geography and location facilitated migration.
Eastern Europe's geography and practically no barriers facilitated the migration of many ethnic groups to different regions. Many people crossed those territories and migrated such as the Slavs, Slovenes, Croats, Magyars, Huns, the Ottomans, and some Jewish people. This combination of ethnicities made Eastern Europe a particular place where customs, traditions, and culture intermingled.
