Answer:
D) a group of product or service items that are closely related in terms of needs satisfied, uses, customer group, outlets, or price range.
Explanation:
Product line can be regarded as group of related products which is been
marketed by the use of single brand name which is been sold out by the same company in question, expansion of offerings by companies is done through addition of existing product lines, since consumer prefer buying from brand they know big before.
It should be noted that A product line refers a group of product or service items that are closely related in terms of needs satisfied, uses, customer group, outlets, or price range.
