Which of the Following Best Reflects Psychology's Goal of Prediction

Which of the following best reflects psychology's goal of prediction?

A) Researchers have developed a test that shows whichdividuals are likely to develop Alzheimer's disease
B) Researchers have examined hundreds of cases of dissociative identity disorder (multiple personality) order to provide a clear picture of the disorder.
C) Researchers have studied how smoking habits develop so that they may develop techniques to prevent teenagers from starting the habit.
D) Researchers have identified a genevolved many cases of obesity.