Normative influence occurs when
a. individuals use the perceived group norms and values as a guide for their own attitudes and values.
b. an individual uses the behaviors and opinions of reference group members as potentially useful bits of information.
c. an individual fulfills group expectations to gain a direct reward or to avoid a sanction.
d. all of these.
e. none of these.

C) an individual fulfills group expectations to gain a direct reward or to avoid a sanction.

Explanation:

Normative influence is strongest when individuals have strong ties to the group and the product involved is socially conspicuous.

an individual fulfils group expectations to gain a direct reward or to avoid a sanction.

Explanation: changing ones behavioural partner or trait and trying to form a good impression in order to be accepted people around them

the branch of biology that deals with the normal functions of living organisms and their parts.

the way in which a living organism or bodily part functions.