For Which of the Following Reasons Do Sociologists and Other

For which of the following reasons do sociologists and other social scientists abide by codes of ethics?

A) Government regulations require all sociologists to abide by these standards.
B) Given the nature of their research, social scientists must commit to do no harm to those they study.
C) Codes of ethics affect the validity of a project's findings.
D) Scientists, as a group, tend to be highly competitive and have always readily endorsed the usefulness of such codes in keeping other scientists in check.