CREATE TABLE table_43852 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" FLOAT)

What was the opponent on December 16, 1989?
SELECT "Opponent" FROM table_43852 WHERE "Date" = 'december 16, 1989'
SELECT "Opponent" FROM "table_43852" WHERE "Date" = 'december 16, 1989'