The most rapid increases in average longevity at birth occurred in the first half of the 20th century largely due to
A) a reduction in maternal smoking.
B) an increase in maternal mortality.
C) declines in infant mortality rates.
D) lack of access to childhood immunizations.

Question

Quizplus · Accepted Answer

The most rapid increases in average longevity at birth occurred in the first half of the 20th century due to declines in infant mortality rates. This was largely due to improvements in sanitation, public health policies, and medical advancements, which reduced deaths from infectious diseases and other common causes of infant mortality.

The Most Rapid Increases in Average Longevity at Birth Occurred