Answer:
a. "Her gratification came from turning pages in a book to delve further and lose herself inside the story, and her pleasure wasn’t even diminished by ferrying stacks of tomes back and forth to the library."
Step-by-step explanation:
This is very important because it explains the gratification that she felt from reading came from turning the pages, which is something that you can´t physically do with virtual books, and eventhough she had to go to the library to get them books, she wasn´t discouraged by that she enjoyed the physical books.