20. Which of the marketing communications tools can harm the reputation of the firm if used too frequently. a) Sales promotion b) Advertising c) Public relations d) Personal selling 21. Direct marketing and personal selling share which advantage a) Less costly than advertising per contact b) More costly than adverting per contact c) Opportunity for relationship building with customers d) None of the above 22. Reminder advertising is used in which stage of the product life cycle? a) Product Development b) Introduction c) Growth d) Maturity 23. Which of the following is a criticism of public relations a) It is cost effective b) It focuses on the brand rather than the company c) It focus on the company rather the brand d) It is not believable