Which of the following is FALSE regarding a contract made between a French company selling goods to an American company?

Which of the following is FALSE regarding a contract made between a French company selling goods to an American company? (hint: France and the U.S. are signatories to the U.N. Convention on International Sale of Goods)

The UNCISG automatically applies to the contract unless the companies opt out 

A written contract is not required

A dispute between the two companies requires that they arbitrate the dispute in the U.S. World Court