Final answer:
B2C, C2C, and B2B are considered e-commerce transactions, while G2B is not.
Step-by-step explanation:
E-commerce transactions refer to the buying and selling of goods and services online. B2C (business-to-consumer), C2C (consumer-to-consumer), and B2B (business-to-business) are all types of e-commerce transactions. G2B (government-to-business) is not considered an e-commerce transaction. It involves government entities interacting with businesses for procurement, licensing, and other purposes.
An example of B2C e-commerce transaction would be ordering flowers over the internet for a friend in a different city. This involves a business (the online flower shop) selling products/services to consumers (individuals ordering the flowers).