Good work!! Congratulations!
My Friendly Venture (FV) fell into your "A" category. We met on a university campus, held our rituals on campus, and all of the members were students, but we did not pursue recognition by the university. It was good to be open to members from the community even if (while I was there at least) no women joined who were not already on campus. One sister was at a nearby school when we first started the FV, but she transferred to the university where the rest of us studied. I was the only one who was a graduate student and teaching associate. Several of the sisters were my students!
Good luck.