The correct option is C Vatican City
Along
with big countries, there are many small independent states, and some are so
tiny that are called microstates. The smallest one of them is the Vatican City.
It occupies the smallest area in the world. Its total area is 0.44 square kilometres.
It actually occupies only an old quarter with a few buildings and parks in the
center of Rome (Italy). It is the most unusual country with own government,
army, diplomatic missions, but without permanent native population.