Kathy Knittle borrowed $20,000 from Bank to buy inventory to sell in her knit shop and signed a security agreement listing as collateral the entire present and future inventory in the shop, including proceeds from the sale of inventory. Bank filed no financing statement. A month later, Knittle borrowed $5,000 from Creditor, who was aware of Bank’s security interest. Knittle then declared bankruptcy. Who has priority, Bank or Creditor?