Prisha has not kept accurate accounting records during the financial year. She had opening inventory of $6,700 and purchased goods costing $84,000 during the year. At the year end she had $5,400 left in inventory. All sales are made at a mark up on cost of 20%. What is Prishas gross profit for the year? A $13,750 B $17,060 C $16,540 D $20,675