Bk111
a) the critique of image and imitation or
b) the critique of the substance of Homeric poetry, and the question concerning who is or is not a worthy exemplar.
These two elements are not unrelated, so it is permissible to cross boundaries, but I don’t expect you to write exhaustively on both topics. Rather I expect you to notice things, and then try and explain the things you’ve noticed. In doing so, two or three complete paragraphs is still sufficient.