You are a global admin in a company with a Microsoft 365 subscription E5 subscription. You have been informed that an employee in your organization is concerned about the personal data that might be stored in your systems, and have submitted a formal Data Subject Request (DSR). You will use the DSR case tool to perform investigations. 
 Which of these locations are not applicable when searching for stored content?

Answer options:

A.User mailboxes
B.Public folders in Exchange
C.Azure Storage accounts
D.SharePoint Online sites
E.OneDrive for Business accounts

Correct Answer: C 
You cannot search for content in Azure storage accounts using the DSR case tool. All other options are valid locations where the Case tool can find content. 
You can use the tool to find content stored in: Any user mailbox in your organization. This includes Skype for Business conversations and one-to-one chats in Microsoft Teams
All mailboxes associated with an Microsoft 365 Group and all team mailboxes in Microsoft Teams
All SharePoint Online sites and OneDrive for Business accounts in your organization
All Teams sites and Microsoft 365 Group sites in your organization
All public folders in Exchange Online
All other options are incorrect as they are valid locations where DSR case tool can search and find content. 
Reference:
To know more about DSR searches, please refer to the link below: 

https://docs.microsoft.com/en-us/compliance/regulatory/gdpr-manage-gdpr-data-subject-requests-with-the-dsr-case-tool