Which pair presents two useful indicators of overall health in a country or region? 

A)  life expectancy and infant mortality rate 
B)  life expectancy and death rate 
C)  birth rate and death rate 
D)  replacement-level fertility rate and total fertility rate

Life expectancy and infant mortality rate are two commonly used indicators of overall health in a country or region. Life expectancy measures the number of years a person can expect to live on average, while infant mortality rate measures the number of deaths of infants under one year of age per 1,000 live births. High life expectancy and low infant mortality rate indicate good overall health and healthcare access in a country or region.