According to Freud,what defence mechanism is being used when an individual copes with stressful situations by trying to atone for unacceptable desires or behaviours

A)  intellectualization 
B)  undoing 
C)  overcompensation 
D)  fantasy

Undoing is the defense mechanism in which an individual copes with the stress caused by unacceptable desires or behaviors by making up for them with acts of atonement. The individual tries to undo the negative consequences of their actions by performing positive behaviors, such as apologizing, helping others or doing good deeds.