ads that Mustrate that a diamond should remain in the family and not be sold informing potential customers about how diamonds lose monetary value over time O introducing the idea of the diamond engagement ring the "spirit ring" as a sign of independence Question 9 B. Which of the following is an example of a local monopoly as compared to a national or intentional monopoly O a restaurant at a rural crossroads O Alcoa during the 19th century De Beers Consolidated Mines O AT&T US. Postal Service D Question 10 8.3 p DELL