Which of the following is not in the Indo-European language family?

Finnish is not in the Indo-European language family because it belongs to the Uralic language family. The Indo-European language family includes most of the languages spoken in Europe, as well as many languages in South Asia and Iran. Finnish, on the other hand, is spoken primarily in Finland and parts of Sweden and Russia. While there are some minor language influences between Finnish and Indo-European languages due to contact and borrowing, Finnish is structurally and grammatically distinct from Indo-European languages, thus placing it outside of this language family.