Equipment Rentals Corporation (ERC) agrees to lease two backhoes to Dig & Fill Construction, Inc. Before any interest in the backhoes can pass from ERC to Dig & Fill, they must be​Select one: a. ​in existence and identified as the goods in the contract. b. ​in ERC's physical possession. c. ​in Dig & Fill's physical possession. d. ​listed in a document of title and filed in the appropriate state office.