For each H$($s$)$ given, determine all possible ROCs and classify each as causal,

stable, causal and stable, or neither. $($a$)$ H$($s$)=$ s$3$

$($s$+1)2($s$+2)2.$

$($b$)$ H$($s$)=$ s$3$

$($s$2+8$s$+25)($s$+5)($s$1).($c$)$ H$($s$)=$ s$3$

$($s$2+16)($s$+2).$

$2$ and z $=1$

$4$ and a single zero at

z $=0.$ If H$(1)=1,$ and the system is causal, determine h$[$n$].$