131) List any four major media types and identify some of the strengths and weaknesses of each of them. 132) Advertisers should regularly evaluate two types of advertising results: the communication effects and the sales and profit effects. How are these two results measured? 133) What is an advertising objective? What are the three primary types of advertising objectives? 134) Describe the main objectives of informative advertising. 135) When would a marketer most likely use a comparative ad?