How many address lines are used to generate $\frac{?}{\text{b}\text{a}\text{r}}(CS)$ signal in memory organization of $128$ KB EPROM and $384$ KB RAM in $8086$ system. Memory system is designed only by using $64KB$ chips.

a$.4$

$($a$)3$

a$.2$

a$.$ Nore of theve

$x-1$