The relatively new area of psychology that focuses on human behavior by focusing on the development of our species is called

Research on spanking suggests that it is quick and efficient at age 2 or 3, and that

the child will become more self-controlled. the spanking is less harmful if the parent expressed honest anger at the child's negative emotions. it may have negative repercussions later. the child will be less likely to shove or hit as retaliation.

Which of these is the most accurate definition of the discipline of psychology?

a) the scientific study of behavior b) the scientific study of mental processes c) the scientific study of behavior and mental processes d) the scientific study of human behavior and mental processes