You are the IT administrator in a company with a Microsoft 365 E5 subscription. Your users are using Dropbox daily, and you want to be able to view the user activity from your organization in Dropbox. What should you configure?

Answer options:

A.In Cloud App Security – App connectors – Add an app
B.In Azure AD – register an app
C.In Cloud App Security – Control – Templates – Create a policy
D.In Azure AD – Create an access package

Correct Answer: A 
You can get visibility over the apps your users connect to by using Microsoft Cloud App Security. 
You add an app by navigating to App connectors within Cloud App Security, and configuring steps to connect to the app. When the app is connected to gain visibility into the usage. 
See Microsoft documentation: 

Option B is incorrect. Registering an app in Azure AD is not relevant in this scenario.
Option C is incorrect. Creating policies within cloud app security allows you to create governance actions and set data loss prevention and file-sharing controls.
Option D is incorrect. Creating an access package in Azure AD is not relevant in this scenario.
Reference: 
To know more about cloud app security, please refer to the link below: 

https://docs.microsoft.com/en-us/cloud-app-security/getting-started-with-cloud-app-security