Trion, Inc. recently spent $1,000,000 on newspaper advertising and obtained a 30 percent increase in sales. Which of the following is TRUE regarding Trion's advertising effectiveness?
A) It's hard to evaluate the ad's effectiveness because the sales increase was the result of Trion's whole marketing mix--not just its advertising.
B) It is not possible to measure the effectiveness of Trion's advertising.
C) Trion's advertising effectiveness should be evaluated by how many potential customers were exposed to the ads.
D) Trying to measure the effectiveness of Trion's advertising is not possible unless the ads were pretested.
E) Trion's ads produced a very effective increase in sales.
Answer: A