How many following statements are correct? 1. Operating income is not affected by changes in production under absorption costing 2. With absorption costing, it is possible to defer a portion of fixed manufacturing overhead costs from one period to the following period through the inventory account 3. Changes in the sales mix do not affect the break even point, margin of safety and other measures as long as the prices remain the same 4. The degree of operating leverage in an organization is greatest at the break even point and increases as sales rise All statements are true Two statements are true One statement is true No statements are true