What should you recommend?

A company hosts a website and exposes web services on the company intranet.
The intranet is secured by using a firewall. Company policies prohibit changes to firewall rules.
Devices outside the firewall must be able to access the web services.
You need to recommend an approach to enable inbound communication.
What should you recommend?

A.
The Azure Access Control Service

B.
Windows Azure Pack

C.
The Azure Service Bus

D.
A web service in an Azure role that relays data to the internal web services

Explanation:
The Service Bus Relay is designed for the use-case of taking existing Windows Communication
Foundation (WCF) web services and making those services securely accessible to solutions that
reside outside the corporate perimeter without requiring intrusive changes to the corporate
network infrastructure. Such Service Bus relay services are still hosted inside their existing
environment, but they delegate listening for incoming sessions and requests to the cloud-hosted
Service Bus.
.NET On-Premises/Cloud Hybrid Application Using Service Bus Relay
http://azure.microsoft.com/en-gb/documentation/articles/cloud-services-dotnet-hybrid-app-usingservice-bus-relay/