From the information below, the net cash flow from operating activities is:

• Cash contributions from owner $8000
• Receipt of bank interest $50
• Dividend payment to shareholders $2500
• Cash receipts from customers $4500
• Cash purchase of computer $2100
• Depreciation on computer $50
• Cash payments to suppliers $3500

A). an inflow of $5500.
B). an inflow of $1050.
C). an outflow of $2100.
D). an inflow of $6900.