Stanley milgram's experiments on the nature of obedience showed that individuals' obedience is influenced by
a. resistance to conditioned compliance.
b. awareness of legitimation.
c. the presence or absence of buffers.
d. socialization.

I believe the answer is: D. socialization
Socialization refers to the process that initiated by individuals to form a connection with another individuals.
The 'act' of obedience is most often done in order to conform to the rules that generally acknowledge by a certain social group. Doing this will prevent us from being considered as an outcast.

Ithink it's a, but i might be wrong