You can’t self-impose an “excommunication”. You can break with that church, but they excommunicate you.
Try again.
Excommunication (defined):
http://www.google.com/search?hl=en&q=define%3A+excommunication
It’s beginning to look like option “C”.
You wrote:
“You cant self-impose an excommunication. You can break with that church, but they excommunicate you.”
You CAN self-impose excommunication. It’s called latae sententiae.
Try again.
What it is beginning to look like is that you have no idea of what you’re talking about.