Hello I need help with this question please. Please give me correct answer and step by step solution. And also please double check the answer and step by step solution please. Thank you.

Select the best answer for the question 9. 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 a cost per unit of $2.25. On October 7, he purchases 25 more for $2.75 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 COGS on a FIFO basis? O A. $210.50 O B. $200.25 O C. $196.25 O D. $199.25