The regulators in colonial south carolina were a group formed in order to
a) make coastal trade safer
b) protest the intolerable acts
c) stop roving bands of outlaws from terrorising the backcountry
d) prevent the british army from taking control of charleston harbour

C. Stop roving bands of outlaws from terrorising the backcountry

Explanation:

The Regulators formed in 1764 and their main purpose was to have a better government and reduce the taxes that were put on them. At first the Regulators started off as just protesting, but over time it turned into a whole militia and became quite violent. The wealthy men in North Carolina despised the Regulators and saw them as an overall threat to their business and/or wealth, so they called in the actual colonial militia to kill them.