You need to change the Block blob to a page blob.What should you do?

You are migrating a local virtual machine (VM) to an Azure VM. You upload the virtual hard disk (VHD) file
to Azure Blob storage as a Block Blob.
You need to change the Block blob to a page blob.What should you do?

A.
Delete the Block Blob and re-upload the VHD as a page blob.

B.
Update the type of the blob programmatically by using the Azure Storage .NET SDK.

C.
Update the metadata of the current blob and set the Blob-Type key to Page.

D.
Create a new empty page blob and use the Azure Blob Copy Power Shell cmdlet to copy the current
data to the new blob.

Explanation:
* To copy the data files to Windows Azure Storage by using one of the following methods: AzCopy Tool,
Put Blob (REST API) and Put Page (REST API), or Windows Azure Storage Client Library for .NET or a thirdparty storage explorer tool.
Important: When using this new enhancement, always make sure that you create a page blob not a block
blob.
* Azure has two main files storage format:
Page blob : mainly used for vhd’s (CloudPageBlob)
Block Blob : for other files (CloudBlockBlob)

Move your data files to Windows Azure Storage
http://msdn.microsoft.com/en-us/library/dn466429.aspx