In the 2018 financial year, a company's cash sales and credit sales are R100 000 and R50 000, respectively: and its cash purchases and credit purchases are R80 000 and R20 000, respectively. According to the matching concept. how should the stated transactions affect the preparation of financial statements? a. Sales of R50000 and purchases of R60000 should be recognised in the determination of profit. b. Sales of R50 000 and purchases of R20 000 should be recogoised in the determination of profit. c. Sales of R100 000 and purchases of R80000 should be recognised in the determination of profit. d. Sales of R150 000 and purchases of R100 000 should be recognised in the preparation of profit