Question

over the past 60 years, deaths among children have
a. remained relatively unchanged in most high - income countries and have declined in most low - income countries.
b. declined in most high - income countries and have remained relatively unchanged in most low - income countries.
c. declined in most high - income countries and have risen in most low - income countries.
d. declined in nearly all countries, including most low - income countries.

Explanation:

In high - income countries, improvements in healthcare (such as better access to vaccines, prenatal care, and pediatric medical services) have led to a decline in child mortality over the past 60 years. In low - income countries, although there are still challenges, global health initiatives (like the expansion of immunization programs, improvements in sanitation in some areas, and the availability of basic medical care in more regions) have also contributed to a decline in child deaths.

Answer:

D. declined in nearly all countries, including most low - income countries.