a) Business has fallen off greatly in your upscale restaurant due to the slow economy. Briefly discuss four things you can do to win back the loyalty of your past customers." (Nickels, McHugh, McHugh, Cossa & Stevens, 2019, p.551) b) From (a) above, is there a marketing mix(4 P strategy) associated with the four things you discuss? If yes, state what P strategy it is. c) You may most likely do some marketing research to find out some information from the past customers. Compare and contrast the advantages and disadvantages of obtaining the data yourself as against relying on already published data