Which of the following can be folded into a cube ?

A cube is a three-dimensional solid model having 6 faces, 8 vertices and 12 edges. All the faces of a cube are in the shape of a square. Thus, we need exactly 6 square faces to make a cube.

Now, counting the number of faces in each of the given shapes, we get :-

shape A : 6 square faces

shape B : 5 square faces

shape C : 5 square faces

Shape D : 5 square faces

Therefore, the one which can be folded into a cube is shape A.

Hence, the correct option will be option A.