For the curves x=y3 and x=y2 on the interval 0≤y≤1, which statement correctly identifies the curve that forms the right-hand boundary of the region between the two graphs?
a) x=y3 is to the right of x=y2 for all y in [0,1].
b) The curves switch roles at y=32; x=y2 is to the right when y<32 and x=y3 is to the right when y>32.
c) x=y2 is to the right of x=y3 for all y in [0,1].
d) The curves switch roles at y=21; x=y3 is to the right when y<21 and x=y2 is to the right when y>21.