A) to amuse, because the passage contain many funny jokes and asides.
Step-by-step explanation:
While any SAT article may have a funny interpretation or an aside it is unlikely that a possible interpretation of only the funny or amusing elements just for the sake of being amusing would be required to be talked about on the text.
If the humor is to be interpreted it has to be along with the theme that the passage conveys that it should work and not entirely on its own as being amusing for amusement's sake.