4.1 Critically discuss the relevance of managerial accounting for managers in key areas of decision making. Compare and contrast managerial vs financial accounting. Support the discussion with examples. (5 marks) 4.2 Explain the key concepts of opportunity cost, sunk cost, committed cost and sunk cost fallacy in the context of relevant costing and decision making. Why should a business take relevant cost into account as part of business decisions? Support the discussion with examples. (5 marks) Note: It is expected that students actively use external sources such as latest reports, academic and business articles, books, news etc. Minimum 3-4 sources for each