First few years I played was option A and I had a blast just solo and even with a few friends. End of world 7? (The last old style graphics world) and beginning of w10 I played in a small village (3 to 7 people.) And was really glad to move up to that. I was ready for the move and learned way more than in all the other worlds combined but, I was personally ready for it... Then, we joined a very big faction about a year into this world and honestly, I wasn't ready for it. I felt lost and overwhelmed. Oh, it was amazing the things they had done. The artistic touch to everything in the village. I was blown away really tho, and felt lost and so luckily they were nice enough to let me stay a member but keep my own place off site and I kinda spent the rest of this world polishing my playstyle and having fun in my own place. Now, I feel ready to be a contributor in a big faction.
So I would say A, B, then C but more importantly, go with what you feel. You could do all in one world.