The Clerk at the 7-Eleven Store and the Morning Radio

The clerk at the 7-Eleven store and the morning radio announcer are examples of people who work in ___________,while companies that make things like radios and automobiles are engaged in __________.

A) minimum wage operations; maximum wage operations
B) goods production; service operations
C) service operations; goods production
D) high-contact operations; low-contact operations
E) none of the above