You plan to implement a Web-based application that will save XML data to a column in a
table. You need to design a query that ensures that before saving the XML data to the table,
the data contains valid elements. The solution must be developed by using the minimum
amount of effort. What should you include in the query?

A.
.exist()

B.
.query()

C.
FOR XML PATH

D.
sp_xml_preparedocument