What are the only two countries to have a population of over 1 billion?

Here is the question :

WHAT ARE THE ONLY TWO COUNTRIES TO HAVE A POPULATION OF OVER 1 BILLION?

Here is the option for the question :

Brazil and Japan
India and Russia
China and United States
China and India

The Answer:

And, the answer for the the question is :

China and India

Explanation:

[STC003220] When it comes to populations, these two Asian nations top the list. And no one appears to be close to catching up. India has 1.32 billion people, compared to China’s 1.37 billion. The United States, the third-largest nation, with about 326 million people. Next time you whine about traffic, just keep that in mind. As a result, Mandarin is the most widely used language in the world and one in five people worldwide identify as Chinese.