In Contrast to an Agricultural or Product-Based Economy, a Service

In contrast to an agricultural or product-based economy, a service economy focuses its efforts on

A) services like information technology, legal and medical care, transportation, food services, and cleaning.
B) customer service where every job includes direct contact with customers and consumers.
C) manufacturing and large-scale production mixed with direct home sales and multi-level marketing.
D) bulk retail and bundled services exchanged via memberships and consumer collaboratives.