Suppose the writer's primary purpose had been to write an essay illustrating the differences between the ways in which animals and humans communicate. Would this essay accomplish that purpose?

A. Yes, because the essay gives a comparison between human and animal communication

B. Yes, because the essay outlines several key differences between animals and humans.

C. No, because the essay focuses primarily on the significance of human communication

D. No, because the essay does not mention ways in which animals communicate at all.