Regarding the development of Use Case Model, which of the following statement is correct? Select one: a. To protect the AIS, computer criminals or hackers should never be represented as a potential USER. This would be a violation of the Use Case Model design. O b. Use case model should also provide use cases on how users interact with the business above and beyond just the use case of the AIS Oc Use cases should be developed with users' "actions in mind. O d. To track the data flow, actions such as "enter data" or "request data" are usually used as placeholder to avoid confusion