A zero value for the derivative of a nonlinear function always indicates the location of a maximum or minimum

________ builds upon the elimination of internal tariff barriers, the establishment of common external barriers, and the free flow of factors

A) European Union B) Economic union C) Customs union D) Free trade area E) Common market

Which of the following statements is most likely true about radio as an advertising medium?

A) Radio advertising is typically quite expensive. B) Radio ensures good attention from the target audience. C) Radio offers very low audience selectivity. D) Radio prohibits the use of segmentation strategies. E) Radio advertising is characterized by good local acceptance.