A) The man failed to keep his promise. 
B) The woman has a poor memory. 
C) The man borrowed the book from the library. 
D) The woman does not need the book any more.


Oh, I'm so sorry I forgot to bring along the book you borrowed from the library. What a terrible memory you have. Anyway, I won't need it until Friday night. As long as I can get it by then, OK? What do we learn from this conversation?


Answer: A