Answer:
C
Step-by-step explanation:
Billing scheme is an act of using false documentation to effect fraudulent payment for transaction that did not exist. One common way of doing this is through the creation of fictitious companies.
The options listed in the question are effective in mitigating this except matching all bank statements to canceled check.
This scheme deals more with false procurement and payment of the invoices , therefore it has nothing doing with canceled check and bank statements.