逾期付款的委婉提醒技巧 — 国际贸易选择题

一封催款函正文写道："As the payment under Invoice No. 105 has been outstanding for 20 days beyond the due date, we would appreciate it if you could look into the matter and let us know when we may expect your remittance." 该句最突出体现了逾期付款催款函的哪项委婉提醒技巧？ A. 直接施加法律威胁以迫使对方立即付款 B. 用间接请求句式（would appreciate it if...）代替生硬的催促与指责 C. 宣布暂停双方一切后续交易以示警告 D. 公开对方拖欠记录以维护己方信誉