Which of the following is NOT categorized as a type of E-commerce?

The option that is not categorized as a type of E-commerce is Public-to-Private. Typically, E-commerce is classified into several recognized categories based on the nature of transactions and the parties involved.

Business-to-Business (B2B) refers to transactions between businesses, where companies sell products or services to other companies. Consumer-to-Consumer (C2C) involves transactions between consumers, commonly facilitated by third-party platforms that enable individuals to sell to each other. Business-to-Government (B2G) encompasses transactions where businesses provide goods or services to government entities.

In contrast, Public-to-Private does not conform to standard E-commerce categories, as it does not define a clear transactional relationship between designated parties. The terminology often applies to different contexts, such as finance or corporate governance, rather than being recognized as a distinct form of E-commerce like the others listed.