How many files in Site2 will be visible to User1 and User2 after you turn on DLPpolicy1?

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How many files in Site2 will be visible to User1 and User2 after you turn on DLPpolicy1? To answer, select the appropriate options in the answer area.
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Explanation/Reference:
Reference:
https://social.technet.microsoft.com/wiki/contents/articles/36527.implement-data-loss-prevention-dlp-in-sharepoint-online.aspx