Vivian Goes to an Auction and Sees a Rare Antique

Vivian goes to an auction and sees a rare antique lamp that is an identical match to one she already has.At the proper time she bids on the lamp and is the highest bidder.Even though she is the highest bidder,the auctioneer refuses to accept her bid and withdraws the lamp from the auction.Can the auctioneer do that?

A) Unless otherwise stated, the auctioneer had the right to withdraw the item before the fall of the hammer.
B) Generally, the auctioneer must sell to the highest bidder. Vivian will get the lamp.
C) Generally, the auctioneer is the offeror and the bidders are the offerees so there is a contract and Vivian will get the lamp.
D) Most auctions are without reserve and therefore the auctioneer cannot withdraw the lamp.