The correct option is C The average number of children born to a woman during her lifetime
Total fertility rate is defined as the average number of children born to a woman in her lifetime.
The number of live births per thousand persons in unit time is known as the birth rate.
Replacement level fertility is number of children a population must produce to replace itself from one generation to the next. It is about 2.1 children per woman in a population.
The difference between the birth rate and death rate in a population is known as the rate of natural increase.