合同修改与书面确认的表达 — 国际贸易选择题
题目
某出口公司致函买方，同意将销售确认书第 S-646 号项下的价格由每件 12 美元上调至每件 12.5 美元，其余条款一律不变。按照外贸函电惯例，函中应写明：We confirm our acceptance of your amendment and enclose the contract in duplicate, ，one copy of which please sign and return for our file.
A.Please amend it accordingly B.Please sign and return both copies C.Kindly note that all other terms remain unchanged D.We have cancelled the original contract