e following statements are accurate? I. Obtaining a replacement customer costs about 4 times what it costs to retain a customer II. "Apostles" tell approximately the same number of others about their good experience as compared to "terrorists" relating their stories about a bad experience III. "Terrorists" tell approximately twice the number of others about their bad experience as compared to "apostles" relating their stories about a good experience IV. Only 4% - 10% of unhappy customers will ever complain Group of answer choices I only