Answer:
Because the slaves brought Special stills.
Step-by-step explanation:
Slave labor was important for the economy of the southern states because the brought Special skills and farming knowledge in cultivation of crop such as rice e.t.c. This action was useful to the British and also leads to the expansion and development of the British commercial empire.
The European when demanding for the new cash crop such as sugar, rice, cotton e.t.c,which required large labor
This prompt the British to further enslaved the Africans,