An international contract should be executed through four basic steps: pre-preparation for contract, contract negotiation, 1 and contract execution, and each steps includes detail procedures, an international seller must have good knowledge of the following steps: firstly we should seek 2and contact the certain customers who have demands indeeD.The second steps we need negotiate with customers about the price, products, service etC.In this step we should make an 3 to our customers, and the costumers will make a confirmation of 4 or non-acceptancE.After all essential factors of contract are confirmed, we should sign contract with our customer. The last step is execution of contract, in this step we need arrange shipment, prepare relative shipment documents and effect insurance if any etC.Of course our customer should also make 5 by L/C or T/T according to the contract stipulations.
A.A.contract performance
B.B.contract signing
C.C.contract payment
D.D.contract shipment
A.market
B.product
C.customer
D.seller
A.inquire
B.counteroffer
C.offer
D.acceptance
A.inquire
B.acceptance
C.offer
D.quotation
A.customs clearance
B.payment
C.shipment
D.production
请帮忙给出每个问题的正确答案和分析，谢谢！

A.A.A.contract
B.B.contract
C.C.contract
D.D.contract
E.market
B.product
C.customer
D.seller
F.inquire
B.counteroffer
C.offer
D.acceptance
G.inquire
B.acceptance
C.offer
D.quotation
H.customs
I.payment
C.shipment
D.production