Which BEST explains why photojournalism did not emerge until the Civil War?

(1 point)
O Camera technology had to become portable and create quality images.
• There were few practical uses for photography prior to the Civil War.
People had a lot of concerns about photographing the dead in previous eras.
O The Civil War was the first war to receive widespread coverage in the press.

The Civil War was the first war to receive widespread coverage in the press.