Final answer:
An industrialized country is most likely to exhibit zero population growth, showcasing a stable population due to well-developed healthcare, education, and family planning.
Step-by-step explanation:
A country with zero population growth is most likely to be industrialized. Countries that are economically developed tend to have lower birth rates and lower death rates, which lead to a stable population over time. This phenomenon is associated with the demographic transition model, which describes how countries move from high birth and death rates to low birth and death rates as they develop economically and socially. An industrialized nation often has better access to healthcare, education, and family planning resources, contributing to a more even distribution of individuals across all age groups and leading to zero population growth.