Throughout college and even while attending law school, Devon always dressed very casually, sported long hair, and had a number of rings in his nose. When he had the opportunity to work with a prestigious law firm for the summer, he changed his appearance quite radically. Now, he wears three-piece suits and silk ties and has short hair and no nose rings.
This change in Devon's behavior related to his appearance is likely motivated by .

Normative social influence                      

Explanation:

Normative social conditioning requires a behavioural shift that is considered necessary to blend within a specific group. The desire for a good interaction with the surrounding people contributes to compliance.

It also contributes to individuals displaying public obedience, but not generally private approval of the societal standards of the population for the community to embrace.

Societal norms apply to the uncodified laws regulating social behaviour. These are traditional behavioural norms which are commonly adopted by participants of a community.  

the correct answer is d