A solid object was sliced to form two new objects Each of the two new objects had a circular base Which shape could not have been the original object Cone Cylinder Prism Sphere

Answer: prism.
Step-by-step explanation:
Suppose you cut the objects horizontally.
The cylinder already has a circular base, so when you cut it you will have two cylinders, both with a circular base.
The sphere when cut in a horizontal line, will lead to two halves with a circular base of the same surface.
A cone already has a circular base, so when you cut it horizontally, you will end with a smaller cone (the top part that you cut) and the bottom part, that already had a circular base.
The prism has not circular sections, so it is kinda impossible to get a circular section when you cut a prism, then the correct option is a prism, this is because this is the only shape that has some faces confirmed by parallelograms.