The correct answer is Option 4.Infant mortality is the death of children under the age of one year. The infant mortality rate is the number of infant deaths per 1,000 live births.Overall, infant mortality rates have significantly decreased all over the world.Globally, the infant mortality rate has decreased from an estimated rate of 65 deaths per 1000 live births in 1990 to 29 deaths per 1000 live births in 2018.Annual infant deaths have declined from 8.7 million in 1990 to 4.0 million in 2018.The mortality rate in the United States is 5.8. This rate is significantly higher than other comparable developed countries, but the reason is more complicated than raw statistics. In 2020, the infant mortality rate for China was 5.5 deaths per 1,000 live births.The infant mortality rate of China fell gradually from 76 deaths per 1,000 live births in 1971 to 5.5 deaths per 1,000 live births in 2020.In 2020, infant mortality rate for Sri Lanka was 5.9 deaths per 1,000 live births.Infant mortality rate of Sri Lanka fell gradually from 52.5 deaths per 1,000 live births in 1971 to 5.9 deaths per 1,000 live births in 2020.As per the Sample Registration System (SRS) Bulletin of Registrar General of India (RGI), the Infant Mortality Rate (IMR) has reduced from 37 per 1000 live births in 2015 to 30 per 1,000 live births in 2019 at National Level.Hence, Option 4 is correct.