【单选题】

TheCo-opBookshop

Your bookshop onCampus
You Get theBooks & the Profits
Life membership (成员资格) for ~10! For that you get:
Textbooks General books
Children books Members specials
Books by mail and world-wide magazine subscription service.
A、rebate! Paid yearly based on your buying through the year. We are a co-operative owned by our shareholders (股东), (mainly students) who elect the board to make sure you get the books you need and give the profits to the shareholders every year.
No membership; no rebate; and non-members pay a surcharge on textbooks.
A、branch Is On YourCampus. Join theCo-op & Save!
Which of the following is true according to this adA．The more books you buy, the less money you will pay.
B．You have to pay more for any books if you don’t join the coop.
C．You can place an order for a world-wide magazine from this shop.
D．Most of the shareholders are teachers.