Which of the following are common fees sellers face in an auction?

B is the correct answer because sellers at auctions typically incur various fees that can impact their overall profits. Commission fees are common, as auction houses usually charge a percentage of the final sale price as their fee for facilitating the transaction. This is an incentive for them to maximize the selling price of the item.

Marketing fees are also prevalent, as auction houses often invest in promoting items before the event to attract potential buyers. This can include costs associated with advertising, photography, and other promotional materials designed to enhance visibility and interest in the items being auctioned.

The other options do not fully encapsulate the range of fees encountered by sellers. Listing fees, which may be part of a broader commission structure, do not represent the comprehensive costs that sellers face, as they might include additional expenses like marketing and processing fees. Payment processing fees, while relevant, do not encompass the full scope of seller expenses in the auction context. Lastly, delivery costs and rental fees may apply under specific circumstances but are not as universally relevant as commission and marketing fees in the auction process.