【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!
If you want to become a life member of the shop, you______.A．should hand in some old textbooks
B．should pay a surcharge on books
C．can receive some rebate
D．should hand in some money