The correct option is B The number of vertices of a cube is 6
When many rectangles are stacked along the direction of the plane forms a cuboid. Hence, the cuboid is a three dimensional solid formed from many rectangles. This cuboid has three pairs opposite faces.
A cube is obtained by dragging a square along the direction perpendicular to its plane. The solid formed has 8 vertices.
A square is closed shape where all sides are equal and all the angles enclosed in the shape are right angles.