MAAbsorbing and Marginal costing profit

Example 2 from July to December 2014 Examiner Report The following data is available on the production and sales for the first three years of a company’s new product. Year 1 Year 2 Year 3 Production units 5,000 6,000 4,000 Sales units 4,000 6,000 5,000 Variable costs per unit, selling price and total fixed costs per year were constant over the three-year period. The company is considering the use of either marginal or absorption costing. Which of the following statements is/are true? (1) Absorption costing will show a lower profit than marginal costing in Year 1 (2) Marginal costing will show a lower closing inventory valuation than absorption costing in Year 2 (3) Total profit over the three-year period will be the same under both methods Please provide the explanation and answer to this.