Concept:McDougall proposed that instincts are innate, goal-directed behaviors and classified human instincts into fourteen distinct types.Explanation:McDougall viewed instincts as inherited tendencies that drive behavior. He linked each instinct with a specific emotion. For him, instinctive actions have three aspects: knowing (cognitive), feeling (affective), and striving (conative). His classification of instincts into fourteen types is a key part of his theory. Other psychologists focused on different ideas: Thorndike divided intelligence into three types, Woodworth emphasized dynamic psychology, and Drever defined interest in terms of satisfyingness. Since McDougall specifically worked on the classification of instincts, he is the correct match.Answer:B. McDougall