Final answer:
The line from 'My First Memory (of Librarians)' that explicitly details the description of the library is B. 'All those books - another world - just waiting.' The line portrays the library as a place filled with books, creating a separate world that is waiting to be explored.
Step-by-step explanation:
The line from 'My First Memory (of Librarians)' that explicitly details the description of the library is B. 'All those books - another world - just waiting.'
The line portrays the library as a place filled with books, creating a separate world that is waiting to be explored. This description highlights the awe and excitement that the speaker feels upon entering the library.