If you mean physically? The definition of a continent is a large, continuous, discrete mass of land, ideally separated by an expanse of water. so the Caribbean Sea, or the Panama Canal
The border between North America and South America is at some point on theIsthmus of Panama. The most common demarcation in atlases and other sources follows the Darién Mountains watershed divide along the Colombia-Panama border where the isthmus meets the South American continent.
The correct answer to this question is "fulfills its promise in the social contract." The give above is an example of how government fulfills its promise in the social contract. Thank you for posting your question. I hope this answer helped you. Let me know if you need more help.