2376. What characters can be added here so that each character contains a part of the previous character? a) 駐 -> _ -> _ -> 盆 b) 案 -> _ -> _ -> 財

a) 駐 -> 素 -> 紛 -> 盆  

駐  CHUU - stop, reside

素  SO, SU - element, naked, simple

紛  FUN, magi(reru), magi(rawashii) - be mistaken for, confusing

盆  BON - festival of the dead, tray

b) 案 -> 柱 -> 責 -> 財  

案  AN - plan, proposal

柱  CHUU, hashira - pillar, column, pole

責  SEKI, se(meru) - condemn, censure, torture

財  ZAI, SAI - money, wealth, property