Final answer:
Third World nations have little to no industrialization, low standards of living, short life expectancies, and high rates of mortality.
Step-by-step explanation:
The correct answer is D. Third World nations.
Third World nations are characterized by little or no industrialization, low standards of living, short life expectancies, and high rates of mortality. These nations may face challenges such as infectious diseases, high infant mortality rates, inadequate healthcare resources, and poor water and sanitation systems.
An example of a Third World nation is a low-income country with limited access to amenities, such as electricity, plumbing, and clean water, where citizens are not guaranteed education and many are illiterate. These nations often have lower life expectancies compared to high-income countries.