E-commerce transactions occur among consumers, businesses, and governments, resulting in nine major categories of transactions. While the most obvious transaction type to consumers is B2C (business-to-consumer), the fastest growing segment is B2B (business-to-business). There are many other types of e-commerce transactions, however, and the Internet has enabled the growth of transaction types that increase efficiency and convenience in many areas of people's lives. Identify the type of transaction being conducted in each scenario.