CREATE TABLE table_75507 ("Season" TEXT, "Competition" TEXT, "Round" TEXT, "Club" TEXT, "Home result" TEXT, "Away result" TEXT)

Away result of 0 3, and a Season of 1969-70 is what competition?
SELECT "Competition" FROM table_75507 WHERE "Away result" = '0–3' AND "Season" = '1969-70'
SELECT "Competition" FROM "table_75507" WHERE "Away result" = '0–3' AND "Season" = '1969-70'