Which of the following is clean collection? ()e7o答案窝(daanwo.com)-大学生作业答案及考资分享平台

Acollection of financial documents accompanied by commercial documents;e7o答案窝(daanwo.com)-大学生作业答案及考资分享平台

Bcollection of commercial documents not accompanied by financial documentse7o答案窝(daanwo.com)-大学生作业答案及考资分享平台

Ccollection of financial documents not accompanied by commercial documents.e7o答案窝(daanwo.com)-大学生作业答案及考资分享平台

Dcollection by B/L.e7o答案窝(daanwo.com)-大学生作业答案及考资分享平台