(1) Certificates of deposit payable to the secretary of state issued by banks doing business in this state and insured by the federal deposit insurance corporation;
(2) Investment certificates of share accounts assigned to the secretary of state and issued by a savings and loan association doing business in this state and insured by the federal deposit insurance corporation;
(3) Bearer bonds issued by the United States government or by this state; or
(4) Cash deposited with the secretary of state.