Interesting as a thought experiment, but you didn't need to paint the whole scenario around it. You could've just asked.. do you want to remove the CD/TV/TG 'thing' from your brain or would you choose for your body to be transformed into something that society would see as a women (assuming MtF).
And I don't think it's a realistic thought experiment... seeing as how our society is slowly but steadily changing in the right direction,.. so in 2115, I fully expect crossdressing, transgenderism, genderfluidity to be part of society as being gay will be in the next 10 years (it's not there yet).
It assumes that one is feeling sad and lonely because their partner has left them (which might be sad when that happens, but it's not the end of the world). In 2115, I'd expect a wider variety of men and women who are open to lots more than what is now currently going on.
This thought experiment also assumes that transition is only worthwhile if it's possible to be 'perfect' women where society wouldn't notice the history.
I don't know where you were going with this.. but for me, I'm a 50/50 person. I would never remove something from my brain that would change who I fundamentally am. So option B is out.
I would not go for the 'perfect' transition (option C).. though if there is an option for a perfect nose job.. I'm all for it!
So, I'd go for option A in this case. But I would not be sad.