​An oral auction

A) ​is also called a Vickrey auction
B) is where bidders submit increasing bids until all but one remains
C) is where the highest bidder wins and pays the amount of the next highest bid
D) ​all of the above

Oral Auction

A public sale in which goods or property are sold to the highest bidder through spoken bids.

Vickrey Auction

A sealed-bid auction in which the item is awarded to the highest bidder, but the winner pays only the second-highest bid.

Increasing Bids

A situation in an auction where participants continuously raise their bid amounts to outcompete others.