What should you recommend?

You are migrating a solution to Windows Azure.
The solution includes a web application and a business logic layer.
The web application runs on three dual-core servers.
The business logic layer runs on two quad-core servers.
The Windows Azure application must match or exceed the current hardware specifications.
You need to recommend role instance sizes that minimize cost.
What should you recommend?

A.
Small for the web application and Medium for the business logic layer

B.
Small for the web application and Large for the business logic layer

C.
Medium for the web application and Large for the business logic layer

D.
Large for the web application and Extra Large for the business logic layer

Explanation:
http://msdn.microsoft.com/en-us/library/windowsazure/ee814754.aspx

Virtual Machine Size CPU Cores Memory Disk Space for LSR in Web and Worker Roles Disk Space for LSR in a VM Role Allocated Bandwidth (Mbps)
ExtraSmall Shared 768 MB 19,480 MB (6,144 MB is reserved for system files) 20 GB 5
Small 1 1.75 GB 229,400 MB (6,144 MB is reserved for system files) 165 GB 100
Medium 2 3.5 GB 500,760 MB (6,144 MB is reserved for system files) 340 GB 200
Large 4 7 GB 1,023,000 MB (6,144 MB is reserved for system files) 850 GB 400
ExtraLarge 8 14 GB 2,087,960 MB (6,144 MB is reserved for system files) 1890 GB 800

Pricing and Metering for Compute:
Each compute instance is a virtual server. There are 5 compute virtual server sizes you can choose from. The table below summarizes the resources provided by each Compute instance size.
Virtual Machine Size CPU Cores Memory Cost Per Hour
Extra Small Shared 768 MB $0.02
Small 1 1.75 GB $0.12
Medium 2 3.5 GB $0.24
Large 4 7 GB $0.48
Extra Large 8 14 GB $0.96