what is the contrast between the successful rate of interest and expressed rate of enthusiasm for the accompanying cases: Case A: Stated rate of hobby is 8 percent and the recurrence of exacerbating is six times each year. Case B: Stated rate of hobby is 10 percent and the recurrence of exacerbating is four times each year. Case C: Stated rate of hobby is 12 percent and the recurrence of aggravating is twelve times each year.