Answer: The correct answer is D. "For after that...my mother has never been without a book. Until now...and it remains the greatest difficulty of her blindness." (paragraph 15).
This statement supports the theme of the search for meaning and purpose in the face of adversity, as it highlights the mother's reliance on books as a source of comfort and connection to the world. The fact that her blindness has taken away this comfort, and that it remains the greatest difficulty for her, underscores the idea that even in the face of loss and hardship, humans seek to find meaning and purpose in their lives.
Explanation: