5. a. Tax planning for multinational operations is an extremely complex but vitally important aspect of international business. Discuss the ways in which a MNE's can minimize its tax burden. [10 Marks] b. Explain international Portfolio theory and diversification. Use a diagram to illustrate your answer. [15 Marks) 5. a. Tax planning for multinational operations is an extremely complex but vitally important aspect of international business. Discuss the ways in which a MNE's can minimize its tax burden. [10 Marks] b. Explain international Portfolio theory and diversification. Use a diagram to illustrate your answer. [15 Marks)