SAT English Practice Question

A common writing technique is the use of an analogy, in which a writer compares two things that are seemingly different to highlight the similarities between them. The passage below uses an analogy to help illustrate a point. What point is the author trying to illustrate with this analogy?

1. A.The author is comparing two seemingly different things to emphasize their similarities.
2. B.The author is using an analogy to show that something is very complicated.
3. C.The author is explaining why the analogy is a useful writing technique.
4. D.The author is showing the reader how to use an analogy in their own writing.