Answer:
interest group
Step-by-step explanation:
Based on the information provided within the question it can be said that this is an example of an interest group. This term refers to group of individuals that share a common interest and because of it work in unison in order to influence the government so that they promote and protect that interest. Which in this scenario the group's main interest is on the food selection in the cafeteria, and are working together to influence the organizational entity to change it.