During the year, TRC Corporation has the following inventory transactions.$$DateTransactionNumber of UnitsUnit CostTotal CostJanuary $1$Beginning inventory$46$$$38$$$1,748$April $7$Purchase$126405,040$July $16$Purchase$196438,428$October $6$Purchase$106444,664474$$$19,880$For the entire year, the company sells $425$ units of inventory for $$56$ each.$$Required:$1-$a & b$.$ Using FIFO, calculate ending inventory and cost of goods sold$\mathrm{.}1-$c & d$.$ Using FIFO, calculate sales revenue and gross profit$\mathrm{.}2-$a & b$.$ Using LIFO, calculate ending inventory and cost of goods sold$\mathrm{.}2-$c & d$.$ Using LIFO, calculate sales revenue and gross profit$\mathrm{.}3-$a & b$.$ Using weighted$-$average cost, calculate ending inventory and cost of goods sold$\mathrm{.}3-$c & d$.$ Using weighted$-$average cost, calculate sales revenue and gross profit$\mathrm{.}4.$ Determine which method will result in higher profitability when inventory costs are rising.