在拍卖中，拍卖师应对参与竞买者表现出高度的职业精神与尊重。可翻译为（）

A. In conducting an auction ，the auctioneer must deal with customers in a manner exhibiting the highest standards of professionalism and respect。
B. An auctioneer must maintain absolute fidelity to client and the client's interests。
C. An auctioneer is duty bound at all times to abide by the laws and regulations governing his profession in all jurisdiction in which he conducts his practice。
D. The auctioneers shall not bid for the lots auctioned by Themselves。