Answer:
c. conformity
Step-by-step explanation:
This question is incomplete, the options are:
a. compliance
b. obedience
c. conformity
d. acquiescence
The term conformity is used in social psychology to refer to the tendency people have to change their behavior in order to be accepted in a group. This change can be done because they feel pressure from the group or because they imagine something could happen if they don't.
In this example, Mitsue notices that all of her girls in her class wear ribbons, and even though she doesn't like them, she starts wearing them to be like them and be accepted as part of the group. We can see that she changed her behavior in order to be accepted. Therefore she is engaging in a form of social influence called conformity.