True or False: An auction can be advertised before an auction listing contract has been properly signed.

The correct answer is that it is false that an auction can be advertised before an auction listing contract has been properly signed. In the context of auction regulations and ethical practices, it is crucial to have a signed contract in place before any advertising takes place. This ensures that all parties involved have agreed to the terms and conditions of the auction and that the auctioneer is legally authorized to conduct the auction on behalf of the seller.

Advertising an auction without a signed contract can lead to misunderstandings or disputes regarding the auction terms, or even legal repercussions if the auctioneer is not officially representing the seller. Additionally, it can compromise the integrity and professionalism of the auction process, as proper agreements protect the interests of both the seller and the auctioneer.

The other options suggest scenarios where advertising could occur without a signed contract, which is not aligned with standard practices in the auction industry. Verbal contracts may lack enforceability and not provide the necessary protections, while implying exceptions for online auctions does not reflect the universal requirement for a signed agreement in all auction formats.