I say C. Come on, GameFreak! We've been waiting since G/S for this! All the other types have had a chance to have a Gym, but not Dark. There has even been a Gym with no specific type! A decent majority of the fanbase wonder why there's never been a Dark Gym, so give us one!
How can people hate Gen V? I'm in it! Official Zekrom of everywhere
Confirm. The fact that we haven't yet had a Dark-type gym has been completely inexcusable since the third generation. Sinnoh in particular has absolutely no excuse as to why there's no Dark-type gym in that country, especially since its Elite Four/Champion setup is Bug-Ground-Fire-Psychic-Variety; the only way Sinnoh should have been able to get away with no Dark-type gym is if Hoenn, the first country introduced in the third generation, had a Dark-type gym (i.e. Sidney as a gym leader as opposed to an Elite Four member; he could have easily swapped positions with Norman)...
(Keep in mind that the first generation introduced Kanto's eight gyms, and Johto's eight gyms do not duplicate any of the Kanto gym types. This would still leave one type unrepresented within just the first two generations. This makes the second generation the only one where the lack of a Dark-type gym is excusable, as the Dark type ended up being the odd type out among the gym types of the two countries.)
I am a die hard Pokemon fan to the most, including the traditional hate of Yu-Gi-Oh.