Which of the Following Statements Is True

Multiple Choice

Which of the following statements is true?

A) Psychologists have looked closely at the influence of human diversity on human behavior since the very beginnings of the field.
B) Psychologists have looked closely at the influence of human diversity on human behavior since the earliest years of the 20^th century.
C) Psychologists still have not begun to look closely at the influence of human diversity on human behavior.
D) Only recently have psychologists looked closely at the influence of human diversity on human behavior.