2855. What characters can be added here so that each character contains a part of the previous character? a) 劣 -> _ -> _ -> 坂 b) 要 -> _ -> _ -> 販

a) 劣 -> 加 -> 吐 -> 坂

劣 RETSU, oto(ru) - be inferior

加 KA, kuwa(eru), kuwa(waru) - add, append, join, take part

吐 TOU, ha(ku) - spew, vomit, give vent to

坂 HAN, saka - slope, hill

b) 要 -> 如 -> 員 -> 販

要 YOU, i(ru) - essential(s) need

如 JO, NYO - equal, like, as, as if

員 IN - member

販 HAN - sell