Your organization uses Microsoft 365 E3 licenses for all users. The legal department requires specific compliance features that are not included in your current plan. As the Microsoft 365 administrator, which licensing option should you use to provide these features to the legal department in the most cost-effective manner?
Purchase additional Microsoft 365 E3 licenses.
Upgrade all company licenses to Microsoft 365 E5.
Acquire add-on licenses for the required compliance features.
Assign Microsoft 365 E5 licenses to the legal department.