Today almost all Europeans speak a (n) Celtic Iranian Indu Indo-European tongue

Hi. I am not sure if those are the choices right after "a (n) ". Just in case there it is, let me go ahead and answer this one for you.

Today, Europeans speak Indo-European tongues. The langauages are: Sanskrit, Old Church Slavonic, Lithuanian, Old Armenian, Latin, Greek, Old Irish, Albanian, and Germanic.