From course of Internaltional Business Law

A, a New York firm, sends a purchase order to B in Sweden. A standard clause on the purchase order states that "All disputes are to be heard in the courts of New York." B confirms using its standard form, which states that "all disputes are to be resolved in arbitration before the ICC, Sweden." Which following statement is true under the CISG?

A. A contract exists on A's terms because B's terms were a material alteration and do not become a part of the contract.
B. A contract exists on B's terms because the modification is immaterial.
C. No contract exists because B's terms were a counteroffer that was not accepted by A.
D. A contract exists because A did not promptly object to the new terms.