Highest-rated car brands. Consumer Reports 2019 Car Brand Report Card ranks auto makers by car reliability, road test performance, and other factors. The following three car brands (in no particular order) were ranked the best: Subaru, Genesis, and Porsche a. List all possible sets of rankings for these top three car brands. b. Assuming that each set of rankings in part a is equally likely, what is the probability that Consumer Reports ranked Subaru first? Genesis third? Porsche first and Genesis second?