I hold a CAA PPL (lifetime) but have let the medical lapse. Purely for convenience and low cost I changed to an NPPL SEA with Medical Declaration a few years ago. At my age, I am happy to be restricted to the UK only.
For me, at 70, OPTION A is the only one. It is likely that the more demanding medical requirements of the proposed LAPL will mark the end of my flying, not because I think I would fail it at the moment, but the cost and emb*ggeration of an expensive medical might be the final straw.
I really want to fly until my pocket, body, brain or passengers/instructors tell me it's time to stop. OPTION A allows me to do that. One day, my Medical Declaration may restrict me to driving a car but will still allow me to fly solo or with another member of my group. I may well want to do that for as long as I can.