The correct response that identifies new nations created after WWII is:
North Korea, East Pakistan, and West Germany.
After WWII, several new nations were established or existing nations were significantly altered in terms of borders and governance. North Korea was established in 1948, East Pakistan (which later became Bangladesh in 1971) was established in 1947, and West Germany (Federal Republic of Germany) was created in 1949 following the division of Germany.
The other options do not accurately represent new nations created specifically after WWII.