Which of the follow is a Slavic language? A. Romanian B. Gaelic C. Polish D. Flemish

Slavic is a Eastern European ethnic group, commonly associated with Russia, the Baltic States, and other Eastern European countries. (Think Soviet Union)

Gaelic is the language of the Celts (Scotland/Ireland)

Flemish is the language of many Belgians

Romanian and Polish are left, and Romanians are more Hungarian or Balkans-affiliated than Russian.

Poland it is!

C. polish i believe because of my research that i did proves it