Costco Wholesale Corporation Opened Its First Australian Outlet in Melbourne's

Costco Wholesale Corporation opened its first Australian outlet in Melbourne's Docklands in 2009 and now has outlets in Canberra and Sydney. Costco's business model is to offer deep discounts and a wide product assortment which customers can purchase in bulk. Costco's approach to retailing is that members of the public are only entitled to shop at Costco outlets after paying a $60 annual subscription fee. Costco would be BEST described as a(n) :

A) off- price store.
B) wholesale club.
C) hypermarket.
D) speciality store.
E) discount store.