Which of these represents an enclave?
A) 1
B) 2
C) 3
D) 5
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That would be D
Enclave- A country or part of a country that is within the boundaries of another country.
This could get confused with number 3. Number 3 is not an enclave because it is just on the border of other countries, but number 5 is an enclave because it is surrounded by one whole country. I hope that makes some kind of sense.
Hope this helps :)