2812. What characters can be added here so that each character contains a part of the previous character? a) 婆 -> _ -> _ -> 眠 b) 響 -> _ -> _ -> 吸

a) 婆 -> 妙 -> 省 -> 眠

婆 BA - old woman

妙 MYOU - strange, odd, adroit, mystery

省 SEI, SHOU, kaerimiru, habu(ku) - ministry, reflect, omit

眠 MIN, nemu(ru), nemu(i) - sleep. sleepy, tired

b) 響 -> 章 -> 古 -> 吸

響 KYOU, hibi(ku) - sound, resound, affect, echo

章 SHOU - chapter, badge, mark

古 KO, furu(i) - old

吸 KYUU, su(u) - suck, inhale, smoke