交易条件修改的表达方式 — 国际贸易选择题

买方收到卖方发盘后，接受全部交易条件，但要求在原报价每件 USD 50 的基础上给予 4% 的折扣。下列哪一句最恰当地表达了这一交易条件的修改？A. We accept your offer subject to a 4% discount on your quoted price of USD 50 per piece. B. We accept your offer without any change in the quoted price of USD 50 per piece. C. We decline your offer because the price of USD 50 per piece is acceptable. D. We accept your offer and will pay USD 54 per piece as quoted.