The answer is C. Rectangle:Box. A circle is a two-dimensional shape that relate to the cylinder because a cylinder is a 3-D shape that is composed of two circles and a rectangle. A rectangle relates to a box because a box is made up of atleast 4 rectangles with square or rectanguar sides as well. A box is different from a cube because a cube is made up of all squares whereas a box can be made up of no squares at all.