The best attributes of a right rectangular prism can be found in a book. This is because a book typically has six rectangular faces that are all right angles, and the sides are perpendicular to each other. Additionally, a book has parallel opposite faces and straight edges, which are characteristics of a right rectangular prism. The other objects mentioned, such as a pie sliced into a triangle, a house, and a cart, do not possess all the attributes of a right rectangular prism.
