What the heck is this machine?

I'm looking to order a shop manual for my 2013 WR250R.  The problem is that these come in different nomencletures if you will; WR250R, RD, RDC etc.  Which one is which and which one do I have?  I'm really confused.

The designation for a non-California 2013 WR-250R is:

WR-250RD
D = Yamaha code for 2013

Sometime it will be shortened to WR25RD, but it means the same thing.
Guess that zero made it way too long.

A letter C on the end designates a California model, but the same book probably contains both, anyway.

Thanks YZ!