Which of the following continents has the lowest population?

The correct answer is Option (1) → Australia

Australia, with Oceania, holds only about 4 crore people — far fewer than South America (about 44 crore), North America (about 60 crore) or Europe (about 74 crore).

Much of the continent is desert, so its people are gathered along the eastern and southern coasts, leaving it the least populated of the inhabited continents apart from Antarctica, which has no permanent population at all.