A. Vatican City
B. Afghanistan
C. North Korea
D. Veitnam
A. Vatican City
Afghanistan, North Korea, and Vietnam are all members of the United Nations.
The Vatican City, on the other hand, is not a full member of the United Nations. However, it has observer status and can participate in UN General Assembly meetings as a non-member state. The Vatican City has its own diplomatic corps, with ambassadors sent to various countries and to the UN.
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