A. True
Shaw did believe that all art should have some kind of 'message' but he wouldn't have necessarily called it a 'moral message'
First off, this isn't really a yes or no question, this is an opinion.
My opinion is that photos that have been altered in any way should be marked. These days you never know what a person will do to say, get a job, advance a political agenda, or ruin the reputation of another person. The public has the right to the truth. Therefore, altered pictures should be marked or labeled in a way that differentiates them from others.
I think they come from Africa and Europe
B. The pharaoh's crossed arms hold a crook and flail is right, and C. The middle coffin is decorated with colored glass are right.