CREATE TABLE table_42090 ("Office" TEXT, "Democratic ticket" TEXT, "Republican ticket" TEXT, "American Labor ticket" TEXT, "Socialist ticket" TEXT)

Which Socialist candidate ran against American Labor candidate Caroline O'Day?
SELECT "Socialist ticket" FROM table_42090 WHERE "American Labor ticket" = 'caroline o''day'
SELECT "Socialist ticket" FROM "table_42090" WHERE "American Labor ticket" = 'caroline o\'day'