逾期付款的委婉提醒技巧 — 国际贸易选择题

一封催款函写道："We trust this is merely an oversight on your part. We would appreciate it if you could let us have your remittance within the coming week." 该函件在语气强度与催款策略上属于哪一档？A. 严厉的最后通牒式催款，暗示即将采取法律行动　B. 首次委婉提醒，将逾期归因于可能的疏忽并请求付款　C. 中度施压催款，指出多次去函未获回复　D. 付款收到后的确认通知函