The increase in life expectancy has been most significantly influenced by
A) crude longevity.
B) declining infant death rates.
C) increased fecundity.
D) declining fertility rates.

Question

Quizplus · Accepted Answer

Declining infant death rates have significantly contributed to the increase in life expectancy by ensuring more individuals survive past infancy and childhood, thus raising the average age of the population.

The Increase in Life Expectancy Has Been Most Significantly Influenced