I think the line 'Since he was old enough to know, big boy' is the best line in the excerpt that uses metonymy. This is because the phrase 'he was old enough' is just an expanded meaning of the phrase 'big boy' - which is what metonymy is all about.
The red= book
The yellow= Amy
Amy is the proper noun because it is the name of someone and book is common because it isn’t a name of something or someone it is an object.
Your answer is d hope that helps if any one else says this i agree.
