You have to explain your question a bit deeper
Answer:
a United nations with no slavery
A developing country is one that is less industrialized, has less economic strength, and has a lower human development index than developed countries. low standard of living
<h3>What does it mean to be a developed country?</h3>
A developed country, often known as an industrialized country, has a sophisticated and mature economy, as measured by GDP and/or average income per inhabitant.
Advanced economies have advanced technical infrastructure as well as a wide range of industrial and service industries.
For more information about Developed country reference link;
brainly.com/question/14927048
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Papua New Guinea is the largest island of the more densely populated southwestern Oceanic island group. It is located north of Australia and to the east of Indonesia.
D is your answer. it gives a more specific answer than the other choices, plus it is true. Slavery has been around since Jesus time, so that's way longer than the 1500s
