Its very urgent

In relation to a bond issue, the role of the underwriter is to: Select one: O a. Guarantee payment to bondholders of both the periodic interest payments and the maturity value. b. Represent the interests of the bondholders and, if necessary, to take legal action on their behalf c. Maintain a subsidiary ledger of individual bondholders and mail out the periodic interest checks. d. Purchase the entire bond issue from the issuing corporation and then sell the bonds to the public