What was one requirement imposed by the bundle of laws known as the Compromise of 1850 A. All slave owners were required to apply for a license from the federal government and provide proof of ownership.
B. The transportation of slaves across state lines required the approval of the federal government.
C. Transactions involving the transfer of ownership of slaves required the payment of an additional fee to the federal government.
D. Runaway slaves, even those in the north, were required to be returned to their owners under penalty of law.