I know I should comment but, I dont know how. But what are the answer choices.
In 1884, George Eastman created a dry gel on paper, or what we think of as film. TRUE.
Sure i will claim u
About that last one i don't really know
The answer is "3). It appears to have been created to mark the unification of Egypt."
It isn't 1, as the Palette of Narmer is an Egyptian artwork, not Sumerian.
It isn't 2, as it doesn't feature cuneiform, but hieroglyphs.
It isn't 4, as the art isn't Mesopotamian, but Egyptian.