Which of the following statements is (are) FALSE? Select one or more alternatives: a A possible disadvantage of using multiples to value a company is that it may be difficult to find enough comparable companies. b For a company with positive earnings growth, we would expect the forward-looking PE multiple to be higher than the current PE multiple. c We should not expect to find significant differences in PE ratios for firms operating in the same industry. d The EV/Sales multiple may be more appropriate for valuing companies that are making a loss than the PE multiple.