Which of the following best describes ethics?

a. rules of conduct that apply to a particular group
b. values that govern an individual’s perception of right and wrong
c. rules of conduct that are consistent across all groups, professions and nationalities
d. ethics are dependent on an individual’s viewpoint

The correct answer is letter A.

Explanation:  Ethics is a set of moral values and principles that guide human conduct in society. Ethics is built by a society based on historical and cultural values. From the point of view of philosophy, ethics is a science that studies the values and moral principles of a society and its groups