Which of the following is an example of e-business?Group of answer choicesAmazon's inventory control systemAn Amazon mobile appThe Amazon.com websiteAmazon's Facebook page

All of the options provided are examples of e-business.

1. Amazon's inventory control system: This is an example of e-business because it involves the use of electronic systems and the internet to manage and control the inventory of the business.

2. An Amazon mobile app: This is also an example of e-business. The mobile app allows customers to shop and make purchases electronically, which is a key aspect of e-business.

3. The Amazon.com website: This is a clear example of e-business. The website is the main platform where the electronic business is conducted. Customers can browse products, make purchases, and even contact customer service all through the website.

4. Amazon's Facebook page: This is an example of e-business as well. Through the Facebook page, Amazon can engage with customers, advertise products, and direct traffic to their website or app. This use of social media for business purposes is a part of e-business.