Exam SC-401 topic 2 question 23 discussion

Your company has a Microsoft 365 tenant.
The company performs annual employee assessments. The assessment results are recorded in a document named AssessmentTemplate.docx that is created by using a Microsoft Word template. Copies of the employee assessments are sent to employees and their managers.
The assessment copies are stored in mailboxes, Microsoft SharePoint Online sites, and OneDrive folders. A copy of each assessment is also stored in a SharePoint Online folder named Assessments.
You need to create a data loss prevention (DLP) policy that prevents the employee assessments from being emailed to external users. You will use a document fingerprint to identify the assessment documents. The solution must minimize effort.
What should you include in the solution?