SAT English Practice Question

The passage discusses the effects of the widespread use of the internet on our ability to focus. The passage also suggests that our ability to focus has declined over time, and it suggests that this decline is a result of the changes in how our brains process information in the digital age. What is the most likely reason why the writer chooses to conclude the passage with a discussion of our brains?

1. A.To show the reader that the changes in our brains are the cause of the decline in our ability to focus.
2. B.To prove that our brains have changed as a result of the widespread use of the internet.
3. C.To explain the relationship between technology and our ability to focus.
4. D.To suggest that our brains are the primary cause of the decline in our ability to focus.