World Population Day is celebrated on:

The correct answer is Option (1) → 11 July

World Population Day is observed every year on 11 July to draw attention to population issues such as family planning, gender equality and health. It was started in 1989 by the Governing Council of the UN Development Programme, inspired by the “Day of Five Billion”, 11 July 1987, when the world’s population was estimated to have reached five billion.