Horla Co's manufacturing operations recorded the following information for the month of March 20x9: Inventories Mar. 7, 20x9 Mar. 31, 20x9 Direct materials $32127 $ 30538 Additional information for the month of March: Direct materials purchased $83418 Direct labour costs incurred 55714 8 Direct labour rate per hour Factory overhead rate per direct labour hour 12 What were the prime costs for the month of March? Select one O a. $139132 O b. $140721 c. $139285 ed. $83571 Check