I personally think B. In my personal opinion (as an ex teacher and mother) I think it is the parent's job to 'shape' their children's childhood. Schools are only a new institution in our culture. In fact schools were only really made compulsory and state funded for all in Victorian times when Big Business Heads realised they could get a more compliant, punctual and efficient workforce if they could create institutions where children were taken away from the 'influence' of their parents and shaped to fit the schedules and restrictions of their factories and workplaces and not question authority etc. So in reality the softer, more natural approaches to education like Steiner and Montesorri were attempts by progressive people to try and return to the sort of gentle loving education that parents (in an ideal pre-industrial world!) would have given their children. By education I mean of course, life skills, personal skills and skills needed to work in their profession so not necessarily reading and writing. With today's emphasis and the necessity on academic skills things have changed but I think there is no reason an involved parent cannot provide these skills with the help of the internet and libraries.
In my experience as a teacher I believe that once a child has the tools to read and they are happy and confident because of a loving background and they have a sense of wonder and have been inspired then it doesn't matter whether they learn at home or school, they will do well. But nothing can replace the loving influence of a parent that has time for them and can help them on their learning journey.
That is just my pretty radical opinion. I seriously felt sad for all those children who I taught in many different schools, in two countries, who spent more time with me in a week than with their parents. Not that I was cruel or awful but I just couldn't love them or have as much time for them as their parents would have if given the chance. So if you want Steiner and can't afford it, then give them Steiner in the home. Your version of Steiner would be a hundred times better than from someone who can never know and love your kids like you do. Even if it is only in the afternoons after 'normal' state school. Your influence is so much more important I think.

Sorry full of punctuation mistakes as I am dealing with a climbing toddler and I can't go back to find them all...even so I hope my rambling makes sense!