Gladstone Company tracks the number of units purchased and sold throughout each accounting period but applies its imventory costing method at the end of eoch period, as if it uses a periodic inventory system. Assume its accounting records provided the following information at the end of the annual accounting perlod, December 31 . Assuming that for Specific identification method (tem lo) the March 14 sale was selected two-fiths from the beginning inventary and three-finth from the purchase of January 30 . Required : 1. Compute the amount of goods available for sale, ending inventory, and cost of goods sold at December 31 under each ef the following inventory costing methods: a. Last in, first-out: b. Weighted averoge cost c. First-in, first-out. d. Specific identfication, assuming that the March i4 saie was seiected two-finhs from the beginning inventory and thee thins hain the purchase of January 30 . Assume that the sale of August 31 was selected from the remainder of the beginning inventory with 1 ise belance from the purchose of May 1 . 2.a. Or the four methods, which will resul in the highest gross profit? 2.b. Of the four methods, which will resulf in the lowest income tawes? Complete tais queskion by entering your answers in the tabs belowe. 2-b. Of the four methods, which will result in the lowest income taxes? Complete this question by entering your answers in the tabs below. Compute the amount of goods avallable for sale, ending inventory, and cost of goods sold at December 31 under each af the inventory costing methods, (Round intermediate calculations to 2 decimal places and final answers to the nearter whois sois an amburs.)