The graphic design suggestion that refers to the way elements are combined to control movement of the viewer's eye from one element to another is

The way design elements are combined to control movement of the viewers eyes from one element to another

Photography has changed its subject matter quite a lot over the past few years. in the 1800's, it was considered normal for families to have  post mortem photos of their loved ones, and now that would be completely unacceptable. i think that photographers have always pushed boundaries and have been eager to capture everything, it is just society that changes their boundaries.