Final answer:
Ethics is the field of philosophy that investigates morality and engages in systematizing, defending, and recommending concepts of right and wrong behavior.
Step-by-step explanation:
Ethics is the field of philosophy that investigates morality and engages in "systematizing, defending, and recommending concepts of right and wrong behavior" (Fieser 1995). It is divided into three main areas: metaethics, normative ethics, and applied ethics, each distinguished by a different level of inquiry and analysis.