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.
The answer that you need for this question is D.Bull Hope that helps :)
The answer would be Jazz. I'm pretty sure but I could be wrong
The Gregorian chant was the main tradition of western plainsong. It accompanied celebration of mass and other rituals.
B. Gregorian chants.