please solve it as soon as possible before 20 minutes plz

ABC, Inc. has just ended the calendar year making a sale in the amount of $8,000 of merchandise purchased during the year at a total cost of $6,000. Although the firm paid in full for the merchandise during the year, it has yet to collect at year end from the customer. The net profit and cash flow from this sale for the year are O a. $8,000 and -$6,000, respectively. O b. $2,000 and $8,000, respectively O c. $8,000 and $6,000, respectively. O d. $2,000 and - $6,000, respectively