In line 13, the word "sparked" could best be replaced by which of the following

A．the current market values of the goods
B．details of the goods to be sold
C．tile order in which goods are to be sold
D．free admission to the auction sale

A．the auctioneer knocks on the table
B．the auctionees names the highest bidder as the buyer of the goods
C．the goods are knocked down onto the table
D．the auctioneer bangs the table with a hammer