Justin is nineteen. In the past, he drove at an abnormally high speed if no police cars were in sight. Now he believes it is in everybody's best interests to obey speed limits and other traffic rules. According to Kohlberg's stages of moral reasoning, this represents ____.
a. postconventional morality
b. semiconventional morality
c. preconventional morality
d. conventional morality
Answer: d. conventional morality
Psychology