That would be a minor 3rd as D (in the key of D major anyway) is the root or tonic, and F is the 3rd(minor).
Roberto was an interesting man and had a very productive life. Also, nobody knew what happened when he was released.
I would say you could do:
Posters
Powerpoint
A letter
A class
Or a lesson!
Display is important because it helps someone who is viewing a photograph to identify what is being captured in the photograph. If there is "bad display", someone viewing the photograph wouldn't be able to enjoy the image without being distracted by something like bad photo quality or blurriness.
