I voted for the least restrictive option, I think option B, because I believe that everything is political. Even a photo of a pretty flower bears an intrinsically environmentalist message. If someone posts something too cringeworthy then use your downvote or let them have it in the comments. If a user keeps doing it then just block them. If the mods have to start deciding on what's too political, eventually they're going to make some bad calls. Let's not wish upon this monkey's paw.
Edit: I'm a little concerned about how these votes are going to be counted. I wonder if any of the options might be a spoiler choice.