I'm so sorry that my post has caused much discourse amongst the group. It was never my intent. In my original post I had not typed out the full name of the metro station in large part bc my typing isn't that great (I wear the backspace key out a lot) and to me it was just easier to type the abbreviated "GdA" than spell it out. I corrected it since it was not obvious to others what I was referring to and that others would take my humor (too lazy to type) in a manner that I don't mean.
I'm appreciative of all of the answers that I've received. While I have read this forum pretty much weekly since October and have read RS book's (and listened to his podcasts) I just wanted clarification/double check on a seemingly simple/obvious answer. Perhaps I should have explained that more fully in my original post. This is the first time for my dear husband to Paris and he's not a fan of travel so I am trying to research/do the leg work on most things ahead of time to make it smooth process for him (i.e. knowing how to get places and which line to use). This post already alerted me to the fact that the RER-C line will be closed so now I'm looking up other options. And yes this information is posted on the Versailles website under "how to get here" but I didn't think to check there originally (and why since the books and forums are really quite helpful).
Lesson learned. Again, thanks to all.