Doug, a frequent visitor of online auction sites, uses two different accounts-one to place a low bid and the other to place a very high bid on the desired item. This leads to other bidders dropping out of the auctionHe then retracts the high bid and wins the item at the low bid. This form of e-auction fraud is known as ________.
A) shill biddingB) bid luringC) rafter biddingD) mystery biddingE) bid skimming