The country with the highest population in the world is-

Explanation

For the time of the question, option (c) was the correct answer. According to UNFPA’s State of World Population, 2025, in 2025 the population of the countries given in the options is as follows– India: 1463.9 million, China: 1416.1 million, United States of America: 347.8 million, and Russia: 144 million. Therefore, at present option (a) is the correct answer.