Background
A company is developing a website that supports mortgage loan processing. You use the Azure management portal to create a website. You initially configure the website to use the Basic hosting plan. You register a custom domain for the website with a valid registrar.
Customers complete mortgage applications and upload supporting documents to the website. A custom executable named FileProcessor.exe processes all of the information received. An on-premises server that runs Windows Server hosts the executable.
You create a virtual hard disk (VHD) image of the on-premises server. You plan to use this VHD to replace the on-premises server with a new virtual machine (VM) that is hosted in Azure.
Business Requirements
Business stakeholders have identified the following requirements for the mortgage loan processing website:
The website must provide a secure mortgage application process for the customer.
Business users must validate new versions of the website before you publish them to the production site.
You must be able to revert to the previous version easily when issues arise.
The website must remain available to users while new features and bug fixes are deployed.
Network traffic must be monitored on all ports that the website uses.
Technical Requirements
General:
You must develop the website by using Microsoft Visual Studio 2013.
The website must be stateless. Subsequent requests from a user might or might not be routed back to the website instance that the user initially connected to.
Security:
You must secure the custom domain and all subdomains by using SSL.
Storage:
The custom executable must use native file system APIs to share data between different parts of the website.
The custom executable must continue to use a network file share to access files.
Monitoring:
The website must use port 6000 with UDP to submit information to another process. This port must be actively monitored by using the same external port number.
Deployment:
You must deploy the VM and the associated VHD. You will need to move this VM to a different Azure subscription after deployment.
You must establish a continuous deployment process that uses staged publishing.
The custom domain must handle requests for multiple subdomains.
The custom domain must use a www CNAME record that points to the domain’s @ A record.
The custom executable must run continuously and must be deployed as an Azure web job named
FileProcessor
Application Request Routing (ARR) affinity must be disabled for the website.
Solution Structure
The solution structure for the website is shown in the following exhibit.

You need to select an Azure storage service solution for completed mortgage applications and supporting documents.
Which solution should you use?

A.
table storage

B.
blob storage

C.
queue storage

D.
file storage

Explanation:
File storage is required to access the files via a network file share.
The custom executable must continue to use a network file share to access files.