What does the equation

y $=$ x$2$

represent as a curve in $2?$

circlehyperbola$$parabolaellipseline

$($b$)$

What does it represent as a surface in $3?$

elliptic paraboloidellipsoid$$coneparabolic cylinderhyperboloid

$($c$)$

What does the equation

z $=$ y$2$

represent?

parabolic cylinderellipsoid$$coneelliptic paraboloidhyperboloid