Which region is most densely populated?

Indonesia

The correct answer is Option (2) → Indonesia

Among the options given, Indonesia is the most densely populated region. It is a highly populated island nation with major urban centers like Jakarta, and its islands (especially Java) have extremely high population density.

The other regions:

• Greenland – Very sparsely populated due to icy terrain and harsh climate.

• Siberia – Also sparsely populated because of its cold climate and vast, remote landscapes.

• Western Australia – Has low population density, with most people concentrated in a few coastal cities.