CREATE TABLE table_19245 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

How many incumbents for the district of South Carolina 5?
SELECT COUNT("Incumbent") FROM table_19245 WHERE "District" = 'South Carolina 5'
SELECT COUNT("Incumbent") FROM "table_19245" WHERE "District" = 'South Carolina 5'