Which of the following early psychologists would have been most likely to agree with the statement, "The study of the mind should focus on how it functions in everyday life"?

A. Wilhelm Wundt

B. William James

C. John Watson

D. Sigmund Freud

Letter B is the correct answer.

William James was a very well-known psychologist who developed a profound interest in studying the mind and focused on how our minds allow us to function in the real world and influence our everyday lives. According to James, mental life is real and suggested that there's a relationship between internal states and external behaviors. Thus, among the options given, letter B is the correct answer.