1. Which of the following statements is true of product lines?

   a.   They limit the product choices offered to customers to one or two product items.

   b.   They provide economies of scale in advertising.

   c.   They require greater transportation and warehousing costs than product items.

   d.   They increase a firm's manufacturing and inventory costs.

2. Which of the following statements is true of convenience products?

   a.   They are shopping products that are not actively sought after by consumers.

   b.   A consumer is unwilling to shop extensively for convenience products.

   c.   A consumer is unwilling to accept other substitutes for convenience products.

   d.   They are shopping products that are perceived to be similar in features.