Your marketing company wants to evaluate Jira and purchased a 10-user license. A frequently changing group of key stakeh

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Your marketing company wants to evaluate Jira and purchased a 10-user license. A frequently changing group of key stakeholders "" both internal employees and external customers "" will participate in the evaluation.
If the evaluation is successful the company wants all 50 employees to start working with the tool.
You have to manage the frequently changing group of stakeholders and need to make sure only the intended users participate in the evaluation.
How should you meet these requirements?

A. Create and manage the users for stakeholders manually in the internal directory.
B. Connect Jira to your internal LDAP directory and whitelist the IPs of stakeholders.
C. Enable public signup and CAPTCHA but limit account creation to stakeholders.
D. Disable public signup and grant all project permissions to Group Anyone.