In the book, "Nethergrave", Jeremy is given a photograph with a note to do his own homework every year on his birthday from his father.
I have to read about it so i could answer it... can you at least summarize a little what is it about?
The correct answer is A. Capacity. This is because it is the only word that creates a sentence that makes sense. All other words would create nonsensical sentences or would be grammatically incorrect.