Answer: 4. Socially responsible behavior and decisions.
Step-by-step explanation:
Ethics is the study of the norms and principles of behavior that are acceptable in society. They are usually unspoken and represent what is expected of people even if the law does not explicitly state it.
Ethics are meant to be socially acceptable instead of religious or cultural because society today has people of various religious and cultures so a general approach is needed. Culture and religion do however play a major part in ethics.