Identify and define each of the three dominant ethical theories in Western philosophy

Identify and define each of the three dominant ethical theories in Western philosophy. Describe a situation that you have faced recently that presented an ethical dilemma. How would you evaluate your actions in this situation to determine whether or not they were good or virtuous?
Support your claims with examples from the required resources and/or other scholarly sources.
My text resource is Ethics and Social responsibility (2nd ed.). [Electronic version]. Retrieved from https://content.ashford.edu