How Did Nineteenth-Century Painters Respond to the Intense Competition That

How did nineteenth-century painters respond to the intense competition that arose from the development of the hugely popular camera?

A) They began painting pictures as true to life as possible to keep up with the new desire for the realistic images that photographs could produce.
B) They no longer painted portraits or landscapes, since photographs took over those markets completely, and instead focused almost entirely on copying Old Masters.
C) They altered their style, employing new and varying techniques to distinguish their art from the photographic realism of the camera.
D) They sought new professions, as the market for painting dropped off entirely and art schools began to close across Europe.