That all persons are endowed with natural rights to life,liberty,and property
Answer:
Regulate commerce in both the North and the South, but could not yet regulate the slave trade.
Explanation:
The constitutional convention was made to write a new constitution for the USA, in that convention were solved many problems, among these problems, the guidelines between commerce and the slave trade were resolved. In this regard it was decided that the Congress could not prevent the slave trade, but a tax would be levied on each imported slave.
As for material wise, the English realized that the American Colonies could provide a stable stream of funds that relied on the production, refining, and sale of many different supplies and crops. Such examples would be Tobacco, Sugar (not 100% on this one), and Cotton (later on). Other products that could be produced in the Americas were whale oil and seafood. As for influence, the English noticed that they could claim large parts of Unclaimed (and sometimes claimed, which they woukd fight for) North America such as parts of Canada and almost the entire East Coats in order to spread the influence of the Crown further throughout the world. It was also a power struggle fight between Britain, France, and Spain, which was another reason for the colonies.
I believe the correct answer was 1823. Hope this was helpful!