Which of the following menus are available when a user with the Seller role is using WebSphere Commerce Accelerator to manage a B2C store？（）

A.The Master Catalog must be a proper tree.
B.The product management tools work with a Master Catalog.
C.A product cannot belong to more than one category.
D.A store may have more than one Master Catalog.

A.Coupon off next purchase
B.Discounted shipping
C.Extra Bonus Points
D.Fixed amount off per item
E.Free gift with purchase