Which of the Following Is the BEST Example of Psychology's

Which of the following is the BEST example of psychology's goal of changing behavior?

A) conducting research into the likelihood that convicted felons will reoffend once released from prison
B) exploring the function of self-harming behavior in a teenager's life so that the teenager can understand their options and make choices regarding the behavior.
C) giving an interest-inventory (test) at a college counseling center to determine what career or college choices would best suit a student
D) videotaping an intersection with four-way stop signs and measuring the ratio of complete to incomplete stops made by drivers