逾期付款的委婉提醒技巧 — 国际贸易选择题

客户款项逾期仅数日，首封催款函中最能体现委婉提醒技巧的表达是：A. Your payment is seriously overdue; settle it at once or face legal action. B. We would like to draw your attention to Invoice No. 88, which appears to have escaped your attention. C. We are forced to inform you that we will suspend all future shipments unless payment arrives. D. You have broken our agreement and we are extremely disappointed in you.