In this task, you are given a text which is the body of a document. You are given a question and options. Pick the correct number. Don't generate anything else apart from the numbers provided in options.

Context: Mount Carlisle is a stratovolcano in Alaska which forms part of the 5 mile (8 km) wide Carlisle Island one of the Islands of Four Mountains which in turn form part of the central Aleutian Islands. Despite its modest summit elevation a small glacier exists high on the western slopes just below the rim of the summit crater.
Question: The document can be classified to which topic?
Options: 1)NaturalPlace, 2)MeanOfTransportation, 3)EducationalInstitution, 4)Album
1