To which type of group should an administrator send a Marketing Communication email for users hired in the last 90 days?

The correct choice for sending a Marketing Communication email to users hired in the last 90 days is dynamic groups. This type of group automatically updates based on specific criteria, such as hire dates, which is critical for accurately targeting recent hires.

Dynamic groups continuously evaluate and include any users who meet the defined conditions—in this case, users who have been hired in the last 90 days. When a user falls within this timeframe, they are automatically included in the group, ensuring that marketing communications are timely and relevant.

On the other hand, static groups consist of a fixed list of members that does not change unless manually updated, which would not be effective for this type of communication. Self-registration groups pertain to users who enroll themselves into groups, lacking the specific tracking of newly hired employees. Manual groups require the administrator to add or remove users based on specific needs, which would not provide the efficiency and accuracy needed for timely communications with new hires.