Final answer:
The statement about the importance of tobacco and sugar in colonial trade being dependent on slave labor is true. Colonists were not mostly self-sufficient; they imported consumer goods from Britain, making the other statement false.
Step-by-step explanation:
The statement regarding the importance of tobacco and sugar in colonial trade is true. Tobacco was indeed one of the most lucrative products of the Chesapeake colonies, and sugar was extremely significant in driving the world slave trade.
Both crops were labor-intensive and prompted the shift from indentured servitude to slavery in many English colonies, with a greater reliance on enslaved African labor as the demand for workers on plantations exceeded the availability of indentured servants.
The trade in sugar and tobacco not only relied upon but also perpetuated the system of slavery, becoming a cornerstone of colonial economies and fostering the growth of related industries.
Regarding the statement on whether colonists in eighteenth-century North America needed to import consumer goods from Britain, it is false. Most colonists were not largely self-sufficient and did need to import goods from Britain, which included materials and manufactured items that were not readily available or could not be produced in the colonies.