23) A company purchased 100 units for $30 each on January 31. It purchased 150 units for $25 on February 28. It sold a total of 150 units for $50 each from March 1 through December 31. If the company uses the weighted-average inventory costing method, calculate the amount of ending inventory on December 31. (Assume that the company uses a perpetual inventory system.) 23) ______ A) $2,700 B) $4,350 C) $2,900 D) $6,750