CREATE TABLE table_76389 ("Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in the final" TEXT, "Score" TEXT)

What is the surface of the tournament with c dric pioline as the opponent in the final?
SELECT "Surface" FROM table_76389 WHERE "Opponent in the final" = 'cédric pioline'
SELECT "Surface" FROM "table_76389" WHERE "Opponent in the final" = 'cédric pioline'