input: def select_approved_rows():
      """Select all rows from a table where the 'status' column is 'approved'.
      Returns a list of tuples representing the selected rows.
      Example:
      for select_approved_rows() == [('record1', 'approved'), ('record2', 'approved')]
      """
      sql = "SELECT * FROM table WHERE status = 'approved'"
      cur.execute(sql)
      return cur.fetchall()
output:     sql = "SELECT * FROM table WHERE status = 'approved'"
      cur.execute(sql)
      return cur.fetchall()