Clean water,immunizations,and nourishing food have all had a dramatic impact on:

A) infant and child mortality.
B) maternal education levels.
C) population control.
D) marriage rates.

Clean water, immunizations, and nourishing food have all greatly improved infant and child mortality rates by reducing the likelihood of contracting and dying from infectious diseases. These improvements have also led to a decrease in maternal mortality rates. However, there is no direct evidence suggesting a correlation between these improvements and changes in maternal education levels, population control, or marriage rates.