Which of these statements best characterizes Post-Impressionism? A. A 19th-century movement that reacted against realistic depiction
B. An artistic and intellectual movement inspired by the Industrial
Revolution
C. A highly influential movement focused on depicting the realities of
modern life
D. A loosely defined movement of highly individualistic painters

Its the 3rd one i think

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.