The title daisy miller: a study reinforces james's attitude toward his characters as a a) detached observer b) moralist who upholds social norms c) champion of victims who are unjustly judged by society d) psychologist who delves deeply into unconscious motivations

D) Psychologist who delves deeply into unconscious motivations.

Explanation:

Henry James is the author of the popular novel "Daisy Miller: A Study". This book revolves around the characters of Daisy, an American girl who is free spirited and a young American Winterbourne. What starts as a simple feeling for Daisy led to his infatuation and eventual care and worry for the girl.

Through the characterization of Winterbourne as someone infatuated and consistently studying Daisy and worrying about her, James also shows the traits of a psychologist who delves deep into his patients' lives. The story may have been presumed to be about Daisy but it also is more or less the study of Winterbourne's character. The author Henry James' attitude towards his characters in this book is more like a psychologist who delves deep into the unconscious motivations of the characters.