B124 TMA03 a.Explain why it is more difficult to work out the contribution per unit of different pieces of furniture produced by one carpenter compared to the contribution per unit of the output of a large high-tech factory producing large runs of one type of furniture. (5 marks) b.Using the example of someone considering investing in further fixed costs in their sole trader business to improve future profitability, explain the concept of contribution analysis for a 'what-if' situation. Your example should show, using the amended breakeven formula, how planned changes in fixed costs can improve decision-making in terms of planned profit. (7 marks) c.Briefly discuss the essential differences for a business between short-term, day-to-day decisions, and long-term, year-to-year ones. Your answer should include an example of each type of decision relating to an organisation with which you are familiar. (6 marks) d.Explain the essential differences for a business between action and results controls. Discuss with reasons, which of these two controls would be most relevant for a particular organisational task for an organisation with which you are familiar