Which approach should you recommend?

You are designing an Azure web application. The application uses one worker role. It does not use
SQL Database. You have the following requirements:
Maximize throughput and system resource availability
Minimize downtime during scaling
You need to recommend an approach for scaling the application.
Which approach should you recommend?

A.
Increase the role instance size.

B.
Set up horizontal partitioning.

C.
Increase the number of role instances.

D.
Set up vertical partitioning.

Explanation:
On the Scale page of the Azure Management Portal, you can manually scale your application or you
can set parameters to automatically scale it. You can scale applications that are running Web Roles,
Worker Roles, or Virtual Machines. To scale an application that is running instances of Web Roles or
Worker Roles, you add or remove role instances to accommodate the work load.
How to Scale an Application
http://azure.microsoft.com/en-gb/documentation/articles/cloud-services-how-to-scale/