All bids shall be presented under sealed cover and accompanied by one of the following forms of bidder’s security:
(a) Cash.
(b) Cashier’s check made payable to the city.
(c) A certified check made payable to the city.
(d) A bidder’s bond executed by an admitted surety insurer, made payable to the city.
(Added by Stats. 1982, Ch. 465, Sec. 11.)