It's a combination of several things. Light and composition are two of the biggest things... the subject matter can make a difference, too, although a good photographer can often take the most ordinary thing and turn it into something spectacular.
More than anything though, I think it's the photographer's ability to draw the viewer into the photograph. Something needs to grab your attention and hold you there to make it a truly good photo. This can be done through composition, subject matter, style, color, anything and everything, really.
A layout is a visual arrangement that is part of a graphical design. I, personally, prefer sculptures than visual art, but a lot of people find it quite engaging. If I liked any layouts, I would say that the colors mixed with other colors would make it seem calming.
I will search to got the answer
1. is either C or D I'm leaning more towards D though
2. is B why else would a college, or school specifically choose something, to make them look more knowledgeable
3. yup it should be D