Question ( who is responsible , DoD)?

who is responsible to define and maintain the DoD (Definition of Done) ?

A) Dev. Team
B) Dev Team + Product Owner
C) Scrum Team

I think the option C) is the best answer

but I am not sure, the Option B) is also a good one, because normally Scrum Master encourages / facilitates, especially in rertrospective meetings, the others to review the DoD to see if it could be improved. So far as I know SM shouldn't participate actively on defining of DoD, otherweis this impacts the " self-organizing" of team.

what about Option A), I know that PO cares about DoD and must be involved , and his/her agreement about DoD is essential, he/she is the one that takes the responsibilty for the product and its quality and also decides at the end of sprint based on DoD if the feature is done or must go back to Product backlog, but does he actively participate on defining and maintaing of DoD?

Thanks
Mehdi