Is Sonya correct in saying that the UCC applies to all contracts and as long as she has a written contract,she is covered?

Question

Quizplus · Accepted Answer

A)Two sets of laws govern the sale of goods in the United States,the CISG and
the Uniform Commercial Code UCC).The UCC applies when both parties to the sales transaction are residents of the United States.The CISG is applicable when one party is a U.S.resident and the other is a resident of a jurisdiction that has ratified the CISG.Under the UCC,contracts for the sale of goods in excess of $500 must be in writing;however,under the CISG,no writing is required.
B)Two sets of laws govern the sale of goods in the United States,the CISG and the Uniform Commercial Code UCC).The UCC applies when both parties to the sales transaction are residents of the United States.The CISG is applicable when one party is a U.S.resident and the other is a resident of a jurisdiction that has ratified the CISG.Under the UCC,contracts for the sale of goods in excess of $500 must be in writing;however,under the CISG,no writing is required.

Is Sonya Correct in Saying That the UCC Applies to All