You are creating a Web site for Your company. You receive
product lists in the form of XML documents. You are creating
a procedure to extract information from these XML documents
according to criteria that your users will select. 
When a user makes a request, you want the results of these
requests to be returned as quickly as possible. 
What should you do? 

A . Create an XmlDataDocument object and load it with the
XML dat Use the DataSet property of the object to create a
DataSet object. Use a SQL SELECT statement to extract the
requested dat 
B . Create an XmlDataDocument object and load it with the
XML data. Use the SelectNodes method of the object to
extract the requested data. 
C . Create an XPathDocument object and load it with the XML
data. Call the CreateNavigator method to create an
XPathNavigator object. Call the Select method of the
XPathNavigator object to run an XPath query that extracts
the requested data. 
D . Create an XmlReader object. Use the Read method of the
object to stream through the XML data and to apply an XPath
expression to extract the requested data.