A product line refers to Multiple Choice a group of product or service items that are closely related in terms of needs satisfied, uses, customer group, outlets, or price range. the entire product category or industry. the variations within a product class. a specific product SKU that has a unique brand, size, or price. a product and all its ancillary services (warranties, financing, etc.).

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.

answer; intensive use of a sales force and is relatively costly;

you're crazy if you think that someone is going to write a 500 word report for you.