Speciality Stores Such as Toys 'R' Us Are Often Called

Speciality stores such as Toys 'R' Us are often called category killers because:

A) they carry only fast- selling items.
B) they can destroy the profit potential for a category of merchandise for other retailers.
C) they offer an exclusive category of merchandise.
D) they have a broad merchandise mix and shallow assortment.
E) they are located at stand- alone sites.