There are many types of Reverse auctions, but as discussed in this module, in a _______________ auction, Price is not shown to the bidders, time is constrained and the bidders know where they fall against the winner. There are many types of Reverse auctions, but as discussed in this module, in a _______________ auction, Price is not shown to the bidders, time is constrained and the bidders know where they fall against the winner. Shared price Visible price Preferred bidder Ranked bidder Anonymous bidder