What Is the Point of the Raisin Bread Analogy for the Expanding

What is the point of the raisin bread analogy for the expanding universe?

A) to show that all observers see other raisins (galaxies) expanding away from them
B) to show that the raisins (galaxies) at the centre of the loaf have a special viewpoint
C) to show that there is an edge to the universe (the crust)
D) to show that the expansion is faster near the edges and slower in the centre