The correct option is C one thousand
The state of reproductive health of a country can be measured using its infant mortality, maternal mortality, and child mortality rates. Infant mortality rate refers to the number of deaths of infants or children below the age of one per one thousand live births. Maternal mortality rate refers to the number of maternal deaths for every one lakh live births. Child mortality rate refers to the number of deaths of children under the age of five per one thousand live births.