State whether the following statements are true or false. Give a reason for your answer: (i) Average cot can fall even when marginal cost is rising. (ii) The difference between average total cost and average variable cost is consent. (iii) As the output is increased, the difference between average total cost and average variable cost falls and ultimately becomes zero. (iv) AVC can fall only when MC is falling. (v) The difference between total cost and the total variable cost rises with an increase in output. (vi) When MC rises, AVC also rises.