Your database contains tables named Products and ProductsPriceLog. The Products table
contains columns named ProductCode and Price. The ProductsPriceLog table contains
columns named ProductCode, OldPrice, and NewPrice. The ProductsPriceLog table stores
the previous price in the OldPrice column and the new price in the NewPrice column.
You need to increase the values in the Price column of all products in the Products table by
5 percent.
You also need to log the changes to the ProductsPriceLog table.
Which Transact-SQL query should you use?

A.
UPDATE Products SET Price = Price * 1.05
OUTPUT inserted.ProductCode, deleted.Price, inserted.Price
INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice)

B.
UPDATE Products SET Price = Price * 1.05
OUTPUT inserted.ProductCode, inserted.Price, deleted.Price
INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice)

C.
UPDATE Products SET Price = Price * 1.05
OUTPUT inserted.ProductCode, deleted.Price, inserted.Price *
INTO ProductsPriceLog(ProductCode, OldPrice, NewPrice)

D.
UPDATE Products SET Price = Price * 1.05
INSERT INTO ProductsPriceLog (ProductCode, CldPnce, NewPrice;
SELECT ProductCode, Price, Price * 1.05 FROM Products

Explanation:
http://msdn.microsoft.com/en-us/library/ms177564.aspx