The primary reason for the dramatic decreases in U.S.mortality rates during the twentieth century is:
A) the sharp decline in fertility.
B) improvements in standard of living and nutrition.
C) improvements in medical science.
D) the more equitable distribution of goods and services.

Question

Quizplus · Accepted Answer

While all of the options may have played a role, the most significant factor in reducing mortality rates in the US during the twentieth century was improvements in standard of living and nutrition. Advances in sanitation, education, housing, and food production helped to reduce the spread of infectious diseases and improve overall health. Medical science also contributed to longer life spans through the development of vaccines, antibiotics, and other treatments, but it was the broader socio-economic changes that had the most impact. The decline in fertility, while a factor in some parts of the country, was not a primary reason for the overall decrease in mortality rates. Similarly, the more equitable distribution of goods and services may have had some impact, but it was not the driving force behind the dramatic improvements in public health.

The Primary Reason for the Dramatic Decreases in U