Question

5. While visiting a museum, your class is able to see The Palette of Narmer. One of your classmates, Aki, doesn't think this

Answer 1

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.