You need to improve the performance of the view by persisting data to disk

You develop a Microsoft SQL Server 2012 database. You create a view from the Orders and
OrderDetails tables by using the following definition.
You need to improve the performance of the view by persisting data to disk.
What should you do?

A.
Create an INSTEAD OF trigger on the view.

B.
Create an AFTER trigger on the view.

C.
Modify the view to use the WITH VIEW_METADATA clause.

D.
Create a clustered index on the view.

Explanation:
http://msdn.microsoft.com/en-us/library/ms188783.aspx