Trevor is the payee of a negotiable promissory note on which Brian is the maker. Trevor indorses the note in blank and delivers it to Clark, who then transfers it to David without indorsement. David presents it to Brian for payment when it becomes due, but Brian claims he signed the note based upon fraud in the inducement and refuses to pay. a. Who is primarily liable on the instrument? Who is secondarily liable on the instrument? b. Who has warranty liability? Why? Explain. c. From whom can David try to collect now that Brian refuses to pay?