The importance of Rhode Island to the development of enslavement is primarily tied to its role as a major entry port for enslaved people from Africa. Specifically, it contained the city of Newport, which became a significant hub in the transatlantic slave trade during the 18th century. Newport's thriving maritime economy and involvement in the slave trade helped shape the economic landscape of the region and contributed to the broader institution of slavery in the Americas.
While Rhode Island did enact laws related to enslavement, it did not ban it upon founding, and although it had some plantations, it was not the primary colony known for the largest plantations or most significant cash crops compared to other southern colonies. Thus, the correct response regarding Rhode Island's significance would be that it contained the city of Newport, which served as a major entry port for enslaved people from Africa.