Which statement about the net is true?
A. The net can be folded to form a pyramid because at least one of the faces is a triangle.
B. The net can be folded to form a pyramid because more than one of the faces is a triangle.
C. The net cannot be folded to form a pyramid because one of the faces is a rectangle.
D. The net cannot be folded to form a pyramid because the faces that are not a base are not all triangles.