Which of the objects shown below could be sliced to create a circular cross-section?

cone, sphere, cylinder, cube, triangular prism (equilateral base), right pyramid (square base)

choose all answers that apply.

I know that the answer is triangular equilateral base on Khan Academy

I think a cylinder and sphere, because a cone would have a triangular cross section, cube would have a square cross section, triangular prism would have a triangular cross section, and a right pyramid would have a square cross section