According to the Text, Which of the Following Is NOT

According to the text, which of the following is NOT a reason for evaluating the effectiveness of the marketing communication program or campaign?

A) The stakes in making an advertising misstep are high.
B) Reduce the risk by testing, analyzing, tracking performance, and making changes where possible to increase the performance of the advertising.
C) To identify best practices so a brand's advertising continues to improve.
D) It is required by most clients.
E) All of the above are reasons for evaluating the effectiveness.