What Prompted Some Colonial Legislatures,most Notably South Carolina´s in 1760,to

What prompted some colonial legislatures,most notably South Carolina´s in 1760,to seek an end to the importation of slaves?

A) Lack of profit
B) Fear of competition from the northern colonies
C) Concern over the gender imbalance of the slave population
D) Worry about diseases being brought into slave communities by newly imported Africans
E) Fear of slave rebellion