Interesting that in the explanation for the "correct" answer it states:

Creating a clustered index does involve a rebuild of all the data pages, so this will also change the metadata...

It should be noted that the reference and notes apply to Unicode and Access 4.0.

Additional references:

Equivalent ANSI SQL Data Types

URL; http://msdn.microsoft.com/en-us/library/bb177899.aspx

and

SQL Data Types

http://msdn.microsoft.com/en-us/library/bb208866.aspx

indicate...

[font="Arial"]While resource and mssqlsystemresource are both "resource" databases they are not the same if you referencing them in code for whatever reason - they are two distinct and different entities....

See also: http://msdn.microsoft.com/en-us/library/ms189964.aspx

SQL Server 2008 Books Online (March 2009)

Service Account (Reporting Services Configuration)

A least privileged account obviously.

The account you specify for the Report Server service...