Why is unity sometimes regarded as the most important of all design principles?

a. unity governs the entire price of artwork
b. unity may be seen in only part of an artwork
c. unity provides diversity in the artwork
d. unity suggests the agreeable blending of elements

A, B, C, and D all work

Answernational sound;

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.