The Illinois state government would like to raise money by issuing a new municipal bond. They do not want to take the risk that a lack of investor interest leads to some bonds not being bought (i.e. not being able to sell the full amount of bonds desired). Which process should they follow? OA. Have the state Treasurer's office directly issue the bonds with oversight from the U.S. Treasury OB. Get help from a broker/dealer who transacts in the secondary market OC. Get the help of an investment bank using best efforts underwriting O D. Get the help of an investment bank using firm commitment underwriting