It maybe be B if i am wrong i am sorry.
The blue one your welcome
Answer:
The square-shaped slice can be made from a slice parallel to the base of a right rectangular prism, cube, and right rectangular pyramid with a square base. The triangle-shaped slice and isosceles trapezoid-shaped slice can be made with a slice made perpendicular to the base of a right rectangular pyramid.
Answer: ABC is rotated 90° around the origin, then is reflected over the y-axis.
This is my best guess. Hope this is right and I hope this helps you out. So sorry if it is wrong, mate.
