"Please talk quietly in the library."
Imperative because it gives a command or request.
Hope I was able to help! :)
Answer:
I haven't read it so I can only guess based on what you've shown us. It sounds as though earlier on in the story, Annemarie wanted to be involved in some sort of potentially dangerous activity. Later on, I assume she witnessed someone else get hurt or realized the true danger of the activity and realized she's actually glad she isn't involved in a harmful way. The inference I can make is that her opinion on the dangerous activity, whatever it may be, has changed due to someone or something else's suffering.
This might not even be correct since I don't know what the reading is from, but I hope this at least helps you make your own inference of whatever the reading was.
Answer:
to inform readers about different ways that changes can be made
There are several ways in which writers use direct characterization in a story, but the most common way is that they will take time to describe each character in detail.