The Godfather Quiz: Who wrote the book? Complete the line, 'Luca Brasi sleeps with the _'?

By tradition, the Godfather cannot refuse a request on his daughter's wedding day, and Bonasera, portrayed by Frank Puglia, asks Don Corleone, portrayed by Marlon Brando, at right, for a favor in this scene from the 1972 movie 'The Godfather'.
If you can't see the quiz below, go here.
Answers at the bottom of the page - no peeking until you've hit Submit!