Question:Joe created a new website by using Visual Studio 2010, setting the website typeto File, and setting the programming language to C#. Later, Joe received an elaboratewebpage from his vendor, which consisted of the Vendor.aspx file and theVendor.aspx.vb code-behind page. What must Joe do to use these files? [Textbook-70-515] 
A Joe can simply add the files into the website, because ASP.NET 4 supports websites
that have webpages that were programmed with different languages. 
B The Vendor.aspx file will work, but Joe must rewrite the code-behind page by
using C#. 
C Both files must be rewritten in C#. 
D Joe must create a new website that contains these files and set a web reference to
the new site.