The table to the right summarizes results of a survey of the purchasing habits of 1,800 13- to 25-year-olds in a country in 2006, a much sought-after group of customers. Each row of the table indicates the percentage of participants in the survey who say that particular statement. Complete parts a and b. Participants Say That ... They consider a company's social commitment when deciding where to shop. 69Given equal price and quality, they are likely to switch brands to support a cause. 89They are more likely to pay attention to messages from companies deeply committed to a cause. 74 They consider a company's social commitment when recommending products to friends. 66(a) Would it be appropriate to summarize these percentages in a single pie chart? A. Yes because the categories make up shares of a whole. B. No because the data is ordinal. C. Yes because the data are given as relative frequencies D. No because the categories do not make up shares of a whole. (b) What type of chart would you recommend for these four percentages? A. A bar chart B. A Pareto chart C. A pie chart D. A chart with divided bars