pleas do all the parts A-D including explanation and show works. thanks

Instructions a. Assuming that periodic inventory records are hept in units only, compue the imentary at April so ining (1) L.IFO and (2) average-ooat. b. Asuming that perpetual imentory records are kept in dollars, determine the inventory using (1) FIFO and (2) I.1FO. c. Compute cost of soods sold asuming periodic imeatory procedures and imenory priced at FTFO. d. In an inflationary period, which inventory method FIFO, L.IFO, anerage-cost-will show the highest net incoene