Income is to be evaluated under four different situations as follows: a. Prices are rising: (1) Situation A: FIFO is used. (2) Situation B: LIFO is used. b. Prices are falling: (1) Situation C: FIFO is used. (2) Situation D: LIFO is used. The basic data common to all four situations are sales, 520 units for $20,800; beginning inventory, 310 units; purchases, 390 units; ending inventory, 180 units; and operating expenses, $3,100. The income tax rate is 30%. Required: 1. Complete the following tabulation for each situation. In Situations A and B (prices rising), assume the following: beginning inventory, 310 units at $10=$3,100; purchases, 390 units at $12=$4,680. In Situations C and D (prices falling), assume the opposite; that is, beginning inventory, 310 units at $12=$3,720; purchases, 390 units at $10=$3,900. Use periodic inventory procedures. 2. Complete the following sentence: 3. Complete the following sentence regarding the relative effects on the cash position for each situation. Complete the following tabulation for each situation. In Situations A and B (prices rising), assume the following: beginning inventory, 310 units at $10=$3,100; purchases, 390 units at $12=$4,680. In Situations C and D (prices falling), assume the opposite; that is, beginning inventory, 310 units at $12=$3,720; purchases, 390 units at $10=$3,900. Use periodic inventory procedures. (Round your answers to nearest dollar amount.) Complete the following sentence: Complete the following sentence regarding the relative effects on the cash position for each situation