Which of the following should catch the internal auditor's attention as a potential red flag...

Having more bank accounts than necessary can be a red flag for fraud, especially in a subsidiary compared to its peers. This scenario (option B) might indicate complexity that is unnecessary and could be used to conceal improper transactions or facilitate unauthorized movements of funds. Excessive bank accounts can complicate tracking and reconciling of funds, which can be exploited for fraudulent purposes. This potential red flag should prompt further investigation by the internal auditor.

IIA guidance on fraud risk indicators