Answer:
Users
Step-by-step explanation:
The students are the users in the buying center.
User(s) refer to a person or group of people who uses a product. They benefit from the production of a product and they can also be called beneficiaries.
The students uses the textbook to gain more knowledge, experience and skills.
The users (students) as used here refers to the consumers of the publishers textbook
When Kimberley get feedback from the students ( users) to the publisher, it makes the publisher have an idea on how to improve on his future publishing. Every producer needs to get information from it's users so as to improve on it's product.