Why internal slave trade known as the middle passage

Unsourced material may be challenged and removed. The domestic slave trade, likewise known as the Second Middle Passage including, the interregional slave trade, received the term for these private sales of slaves in the United States that reallocated slaves across states throughout the antebellum era.

answer; ///i believe its (b); ///the president will sign it or veto the check first good luck

thomas jefferson is the answer