You have a Microsoft 365 subscription and have assigned Microsoft 365 E5 licenses to your users. Some of your users have issues with their exchange online mailboxes, so you submit a support ticket to Microsoft. You want to ensure that Microsoft cannot access your content to perform service operations without your approval. The solution should allow Microsoft Engineers to make a data access request for a limited amount of time. From the Microsoft 365 admin center, what should you enable?

Answer options:

A.Customer Lockbox
B.Whiteboard
C.Privacy profile
D.Bing data collection

Correct Answer: A 
Office 365 Customer Lockbox is a feature which enables customers to control how a Microsoft support engineer is going to access customer data when investigating and troubleshooting some service issues related to customers Office 365 tenant. This is typically after the customer has raised a ticket with Office 365 Support. Option B is incorrect. This service allows users in your organization to use ‎Microsoft Whiteboard‎ and collaborate on shared whiteboards.
Option C is incorrect. This service lets you set the privacy statement of your organization.
Option D is incorrect. This service lets you choose whether ‎Bing‎ can learn from your organization’s search behavior to better its results.
Reference: 
To know more about Customer Lockbox, please refer to the link below: 

https://docs.microsoft.com/en-us/microsoft-365/compliance/customer-lockbox-requests?view=o365-worldwide