could you please explain each choice?

6. (3 pts) Which of the following statements are true about depreciation? Depreciation I. provides for the matching of expenses with revenues. II. brings the book value of a plant asset down to its market value. III. is a process of valuing the asset at the liquidation value on the balance sheet. IV. is an allocation concept. a. I and IV are true. b. I III, and IV are true. c. I, II, and IV are true. d. II, III, and IV are true