An International Auction Company Offers Sellers the Opportunity to Buy

An international auction company offers sellers the opportunity to buy or sell items via auction and provides an easy place to trade on the Internet. It charges a fee per month along with a fee per sale of 3-7%, depending on the transaction amount. Which online business model does this illustrate?

A) click-and-mortar retailing
B) freemium
C) fee-based content
D) fee-based platform