The school of ethical thought that advocates situational ethics, i. e., each behavior should be evaluated on its own merits, is the:

The school of ethical thought that advocates situational ethics, i.e., each behavior should be evaluated on its own merits, is the: Utilitarian ethical principle
Utilitarian ethical principle determine if a behavior is right or wrong solely based on the outcome of choosing one decision over other decision.
This thinking mechanism led to the advocation of seeing right or wrong based on the situation (situational ethics)