It is estimated as the number of year a new born infant would live if prevailing patterns of age-specific mortality rates at the time of birth were to stay the same throughout the child's life. Identify the concept being one of indicator of Human Development Index.

Life Expectancy at Birth (year)

The correct answer is option (2) : Life Expectancy at Birth (year)

Life Expectancy at Birth (years) : The number of years a newborn infant would live if prevailing patterns of age-specific mortality rates at the time of birth were to stay the same throughout the child’s life.