Which of the following is included in e-business?

The correct answer is option 4- All of these.

All are included in e-business.

E-commerce covers a firm’s interactions with its customers and suppliers over the internet. e-business includes not only e-commerce, but also other electronically conducted business functions such as production, inventory management, product development, accounting and finance and human resource management. e-business is, therefore, clearly much more than buying and selling over the Internet, i.e., e-commerce.