The answer is letter B. The Prohibiting Importation of SlavesĀ of 1807 is aĀ US federal act that specified that no new slaves were allowable to be smuggled into the United States. It took influence in 1808, the initial date permitted by theĀ United States Constitution. This law was endorsed by President Thomas Jefferson, who named for its enactment in his 1806 State of the Union Address.Ā
Ā
