Answer:
c. Informal norms
Explanation:
The standards mentioned in the question above are very common in our society and you have certainly heard and spoken them to some people during your life. Although these are rules that must not be disobeyed, they were not written in a legal document that compels them to be obeyed. These types of rules are called informal rules, which are normal produced by customs among citizens, but do not represent any type of civil or penal code.
