I know what is behind each door but, do you?
No, you don't unless you go inside them.
This time, you have the chance to choose.
The doors vary in colours, the blue, the red and the rainbow (which is the ROYGBIV).
What lies behind these doors are nothing extraordinary, nothing special. It is just that you get the chance to pick a door, and see what is behind that certain door.
Now my friend, choose a door.