You are considering adding a microbrewery onto one of your firm's existing restaurants. This will entail an increase in inventory of $8000, an increase in accounts payables of $2500, and an increase in property, plant, and equipment of $40,000. All other accounts will remain unchanged. The change in net working capital resulting from the addition of the microbrewery is:

A) $45,500

B) $10,500

C) $6,500

D) $5,500