Full-Line Selling Is the Sale of Those Goods and Services

Full-line selling is the sale of those goods and services which are:

A) required as a part of the initial order a new customer places.
B) purchased by manufacturers and not retailers.
C) designed as a line of associated products.
D) sold as additional products that are not directly associated with the initial products.
E) compulsorily more advanced and more expensive than the initial products.