A company wants to have a data store in place that can be used to store video files. These video files will be uploaded by users. Which of the following would you use for this purpose? 

Answer options:

A.Storage Account
B.Data Box Edge
C.Azure Data Box
D.Backup and Site Recovery

Answer – A 
You can use the Blob service in Azure storage accounts to store video files 
The Microsoft documentation mentions the following 

Option B is incorrect since this is an AI-enabled edge computing device with network data transfer capabilities 
Option C is incorrect since this is used to effectively move large amounts of data to Azure 
Option D is incorrect since this is used for backup and recovery purposes. 
For more information on Azure Blob storage, please visit the below URL 

https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blobs-introduction