QUESTION 18 Bayside Bookstore had 500 units on hand at January 1, costing $10 each. Purchases and sales during the month of January were as follows: Date Purchases Sales Jan 14 380 @ $15 15 250 @ $11 27 250 @ $12 29 260 @ $17 Bayside does not maintain perpetual inventory records. According to a physical count, 360 units were on hand at January 31 The cost of the inventory at January 31, under the LIFO method is: O a $3,820 b. $3,420 $3,880. Od d. $3,600