S.C. Code Ann. § 33-46-430

A majority vote of the members present and voting at a meeting having a quorum is required for adoption of any question put to the members, except when a greater affirmative vote is required by this chapter or the bylaws. The foregoing majority requirement notwithstanding, bylaws may provide for a plurality vote of the membership for election of a director when more than two candidates are running for the same seat. When multiple directors are to be elected from the same district, each member has one vote for each vacancy in the district. The vote shall not be cumulative.