Which of the Following Are Key Use Cases for Windows

Multiple Choice

Which of the following are key use cases for Windows Azure cloud computing:

A) Big data-The amount of data produced worldwide is enormous and growing quickly.Windows Azure enables you to scale your computing and storage capacity as needed,giving you flexibility and saving you the expense of buying hardware that's needed only occasionally.
B) Testing and development-Use multiple virtual machines to develop and test your apps in a variety of scenarios rather than buying additional hardware and software and setting up a variety of platforms.
C) Websites and web apps-Host your websites and web apps on Windows Azure which can handle varying demand and shifts the administrative burden (e.g. ,security and reliability) to Microsoft.
D) All of the above.