CREATE TABLE table_31120 ("Series #" FLOAT, "Season #" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" CLOB)

What is the season # for the production code 3.89?
SELECT "Season #" FROM table_31120 WHERE "Production code" = '3.89'
SELECT "Season #" FROM "table_31120" WHERE "Production code" = '3.89'