The correct answer is D. All of the above.
A common reason for changing an information system is new requirements. This could be due to changes in the business, such as new products or services being offered, or changes in the way the business operates. For example, if a company starts selling products online, they will need to change their information system to track orders and shipments.
Another common reason for changing an information system is new technology. This could be due to the development of new software or hardware that can improve the performance of the system. For example, if a company switches to cloud-based storage, they will need to change their information system to take advantage of this new technology.
Finally, problems in the existing system can also be a reason for change. This could be due to bugs in the software, performance issues, or security vulnerabilities. For example, if a company’s website is hacked, they will need to change their information system to fix the security vulnerability.
In conclusion, there are many reasons why a company might need to change their information system. The most common reasons are new requirements, new technology, and problems in the existing system.