The correct answer is: It shows how books provided the speaker with an escape from social injustices.
In the excerpt, the act of borrowing books and holding them close suggests a deep emotional connection and a longing for knowledge or solace. This reflects how books serve as a refuge for the speaker, especially in the context of a time period that may have been marked by social injustices. Consequently, the libraries and the books represent not just an educational resource but also a means of escaping or coping with the difficulties of the surrounding world. The overall tone and sentiment of cherishing the books imply that they offered the speaker comfort and a way to navigate through challenging circumstances.