The correct answer is B.
A character study is an in-depth analysis of a literary character, in this case Louisa Ellis. There is not much action within the story (thereby canceling out the 3 other options), but we learn about Louisa's everyday lifestyle, down to the last detail.
It’s either A or D, but I’m pretty sure it’s D
Fahrenheit 451
The Boy In The Striped Pajamas
Everything Everything
Our Man In Havana
Life of Pi
The Abyss Beyond Dreams
Island of The Blue Dolphins
The Terror