12. Harris is running a greens business providing organic spinach, kale, and lettuce to specialty stores in the area. On October 1, he has 25 units in stock at cost per unit of $225. On October 7, he purchases 25 more for $2.76 per unit on October 31, he purchases 30 more for $2.85 per unit. He sells nearly all of them, leaving only 5 in inventory. What is his weighted average cost per unit? O A. $263 O BS258 O C. $2 71 D. 52 53