The United States and Argentina have signed the Convention on Contracts for the International Sale of Goods (CISG). Oxtron, Inc., a U.S. company, and Leer, an Argentinean company, have entered into a contract under which Oxtron is to ship medical devices to Leer. The contract does not include a choice of law provision. The contract will be governed by:________.
a. the CISG.
b. the UCC.
c. the domestic contract law of Argentina.
d. the domestic contract law of the United States.