What Are the Four Main Types of Ebusiness Models

What are the four main types of ebusiness models?

A) Business-to-borrower, business-to-consumer, consumer-to-business, and consumer-to-consumer.
B) Business-to-business, business-to-consumer, consumer-to-business, and consumer-to-consumer.
C) Business-to-business, business collaboration, collective business, and consumer-to-consumer.
D) Ebusiness-to-ebusiness, business-to-business, econsumer-to-ebusiness, and econsumer-to-econsumer.