please do both parts. Do part b also.

Nash Corporation has the following four items in its ending inventory. (a) Your answer has been saved. See score details after the due date. Determine the following the LCNRV for each item. (1) Determine the amount of write-down, if any, using an item-by-item LCNRV evaluation. (If no write-down, enter O for the amounts.) (2) Determine a total category LCNRV write-down, if any. (If no write-down, enter O for the amount.)