Final answer:
The biggest growth in e-commerce systems has been in business-to-business (B2B) systems, where businesses can connect with suppliers and buyers around the world.
Step-by-step explanation:
The biggest growth in e-commerce systems has been in business-to-business (B2B) systems.
With advancements in technology and globalization, businesses have increasingly turned to online platforms to connect with suppliers and buyers around the world. Business-to-business websites allow businesses to find each other and conduct transactions more efficiently and on a larger scale.
An example of a business-to-business e-commerce system is Alibaba, a platform that connects businesses globally and facilitates transactions between them.