Why is literary style not inspired?

During Religious Ed. last night the review book had a question that we didn't see explained in the text (using [Faith and Life Series](http://www.ignatius.com/promotions/faithandlife/index.htm) for 7th Grade). It asked, "what part of scripture was not inspired?" The kids were like, "um, Judas?" and I thought that was a good answer, but said we do learn a thing or two from him. The answer key however, said "the literary style" is not inspired. I did not understand this and couldn't explain it to the kids. I just told them, the fact that some of it is poetry and some of it isn't is not in it self inspired. I can't for the life of me see how this tidbit will help them to understand the Bible or even how thinking that a poem can be inspired in and of itself. What does it mean that the literary style is not inspired and why is it not inspired? This is asked from a Catholic perspective, but I think any tradition that doesn't hold that the literary style was in fact inspired (whatever that means) could help me answer this question.