Ahab, a U.S. citizen, orders a whale harpoon from Ishmael Corporation, which is located in the United Kingdom. When the harpoon arrives, Ahab discovers it is defective and seeks relief under the provisions of the Contracts for the International Sale of Goods (CISG). Who prevails?

a. Ahab, because the CISG requires the contract to be in writing.

b. Ahab, because Ishmael Corporation delivered nonconforming goods.

c. Ishmael Corporation, because the CISG only applies when both parties are merchants.

d. Ishmael Corporation, because they have the right to cure.