Which Power Shell cmdlet should you use?

You manage a cloud service on two instances. The service name is Service1 and the role
name is ServiceRole1.
Service1 has performance issues during heavy traffic periods.
You need to increase the existing deployment of Service1 to three instances.
Which Power Shell cmdlet should you use?

A.
PS C:\>Set-AzureService -ServiceName “Service1” -Label “ServiceRole1′ -Description
“Instance count=3”

B.
PS C:\>Set-AzureRole -ServiceName “Service1” -Slot “Production” -RoleName
“ServiceRole1” -Count 3

C.
PS C:\>Add-AzureWebRole -Name ‘ServiceRole1″ -Instances 3

D.
PS C:\> $instancecount = New-Object Hashtable$settings[‘INSTANCECOUNT=3] PS
C:\> Set-AzureWebsite -AppSettings $instancecount ServiceRole1