Which of the following situations in the purchasing process creates the highest risk of fraud by making payments to a fictitious supplier?

a. The company has a comprehensive code of ethical conduct that all employees must sign.

b. The system automatically conducts independent credit checks of new suppliers.

c. New supplier authorization in the purchasing system can be set up by anyone in the accounting department.

d. Strong password controls exist so that only authorized purchasing department employees can gain access to the purchasing system.

e. All supplier payments are made by electronic funds transfers.