Which four Transact-SQL statements should you use?

DRAG DROP
You administer a Microsoft SQL Server 2012 database.
You use an OrderDetail table that has the following definition:

You need to create a non-clustered index on the SalesOrderID column in the OrderDetail
table to include only rows that contain a value in the SpecialOfferID column.
Which four Transact-SQL statements should you use? (To answer, move the appropriate
statements from the list of statements to the answer area and arrange them in the correct order.)

Answer:

Explanation:
According to these references, this answer looks correct.
References:
http://msdn.microsoft.com/en-us/library/ms188783.aspx
http://msdn.microsoft.com/en-us/library/ms189280.aspx