交易条件修改的表达方式 — 国际贸易选择题

卖方发盘中规定付款方式为即期信用证（L/C at sight），买方希望改为D/P at sight。下列哪句最恰当地表达了这一交易条件的修改？ A. We regret that we cannot accept your offer. B. We would like to modify the terms of payment from L/C at sight to D/P at sight. C. Please send us your latest catalogue for our reference. D. We are pleased to confirm receipt of your offer.