Which of the following statements about multinational corporations (MNCs) is true? a. Most MNCs use licensing or franchising rather than opening up wholly owned subsidiaries in different countries. b. MNCs are characterized by a global strategy of focusing on opportunities throughout the world. c. MNCs are inherently unethical and always do harm in the countries in which they operate. d. MNCs operate on a global scale with strong ties to the nation in which they were founded. e. Because of their power, MNCs usually increase the standard of living within the countries in which they operate.