Correct Answer:
B. Italy
The question asks for the country where Mount Etna is located. Mount Etna is an active stratovolcano situated on the east coast of Sicily, which is an island region of Italy. It is one of the world's most active volcanoes and a prominent geographical feature of the Mediterranean region.
- Greece has several volcanoes, notably Santorini, but not Etna.
- Spain has volcanoes like Teide in the Canary Islands, but Etna is not located there.
- Turkey has volcanoes such as Mount Ararat, but Mount Etna is not within its borders.