Final answer:
The 2. Albanians speak a unique branch of the Indo-European language family, which is not part of the Slavic, Germanic or Romance subfamilies. The Slavic languages include Czech, Polish, and Ukrainian, but Albanian is distinct.
Step-by-step explanation:
The ethnic group that speaks the only surviving Indo-European language that is not part of the Slavic, Germanic or Romance subfamilies is the 2. Albanians. This question appears to be a bit misleading since the phrasing suggests that only one Indo-European language has survived, which is not accurate.
Many Indo-European languages thrive today, however, Albanian is indeed a unique branch of this language family. Czechs, Poles, and Ukrainians all speak languages within the Slavic language group.
It's important to note that the Indo-European language family includes various dominant language groups in Europe. In the north, you'll find Germanic languages; in the south, Romance languages; and in the east, Slavic languages. Each of these groups encompasses multiple languages spoken by different ethnicities in Europe.
However, Albanian stands out as a unique Indo-European language that does not belong to one of these three main subfamilies. The Albanian language has two primary dialects: Gheg and Tosk. Although relatively isolated compared to other Indo-European languages, Albanian has maintained a distinct identity throughout its history.