Phoebe Sends Rosinda a Cashier's Check for $1,000

Phoebe sends Rosinda a cashier's check for $1,000.Rosinda deposits the check into her account at Security Bank.The next business day,the bank confirms a $1,000 increase in Rosinda's account.She then wires Phoebe $150 for "fees." Later,the bank discovers that the check is a fake.Most likely,the loss falls to

A) Rosinda.
B) Security Bank.
C) Rosinda and Security Bank in equal measure.
D) no one.