How is $8255($Programmable Peripheral Interface$)$ configured if its control register contains $9$Bh $($sce QV$.$Figure L$).$a$)$ Mode $0,$ All ports are Inputsb$)$ Mode $0,$ port C as input, A and B ports as outputsc$)$ Mode $0,$ All ports as outputsd$)$ Mode $0,$ port A as input, B and C ports as outputs