A sporting goods store purchased $7,000 of ski boots in October. The store had $3,000 of ski boots in inventory at the beginning of October, and it expects to have $2,000 of ski boots in inventory at the end of October to cover part of anticipated November sales. What is the budgeted cost of goods sold for October?

a) $5,000

b) $6,000

c) $8,000

d) $10,000