Aman and Sami formed a partnership. Aman incurred a debt in the ordinary course of the partnership business, If the debt is not paidthe creditor may sue: A. either partner under the theory of "ultra vires" partnership liability B. only Aman and the partnership in a lawsuit together,not Sami,because this is Partnership law and not Agency Law. Therefore, if the creditor adds Sami, this is known as descrutae superior, the creditor loses it superior position. C. nly Aman D. the partnership and the partners together or in separate lawsuits or in any combination, this is known as joint and several liability E. only the partnership