Clicking on the cube that appears in the top right of the 3D view window will: (1 point) create a new object
center the view on the terrain
undo your last action
toggle between orthographic and perspective view

The correct option is;

Toggle between orthographic and perspective views

Explanation:

On a game design program such as Unity 3D, when the cube with colored pointers that can be located on the 3D view window is clicked, it will bring about a switch between the perspective or 90 degrees and orthogonal views which enables the display of the object in three dimension that appears more like real life figures.

well you could find somebody who doesn't want theirs and ask for it or possibly trick a dealer into giving it to you for free.