Here,

x$2+$ z$24$

or$,$ equivalently,

x$2+$ z$2$

$2$

which describes the set of all points in $3$ whose distance from the $?-$axis is at most $.$ Further,

$0$ y $1$

consists of the points between the planes

y $=0$

and

y $=.$

Thus, the inequality represents the region consisting of all points on or inside a $---$Select$---$circular cylinder$$circle$$sphere of radius with axis the $?-$axis from

y $=0$

to

y $=$