Sara and Tim Enter into a Contract for a Sale

Sara and Tim enter into a contract for a sale of orchids that requires payment within thirty days of delivery.The UCC provides that when parties do not specify payment terms,payment is due at the time and place of delivery.Under the UCC,the specific payment term in the parties' contract

A) removes the entire transaction from the UCC.
B) is enforceable to the extent it mirrors the rule in the UCC.
C) is fully enforceable.
D) is not enforceable.