Robin owns a bakery shop and receives her weekly shipments of flour and sugar from Wolf Enterprises, which controls the local delivery market. Although she has a two-year contract with a set price for deliveries, Wolf decides to modify the contract and triple their delivery rates. If Robin does not sign the new contract she won't receive her weekly shipment and will not be able to complete her own contracts, including seven wedding cakes. Wolf Enterprises behavior is an example of: tough but legal business practices O duress by physical compulsion O duress by improper threat O undue influence