On September 30, Stark Company needed to estimate its ending inventory in order to prepare its third-quarter financial statements. The following information is available: (1) Inventory, July 1: $12,500 (2) Third quarter net sales: $40,000 (3) Third quarter net purchases: $17,500 Stark's gross profit ratio is 15%. Estimated cost of goods sold would be

a) $6,000

b) $34,000

c) $36,000

d) $40,000

e) $57,500