Which action by senior management indicates to the internal auditor that there may be fraudulent...

Setting unrealistic targets for staff to achieve is a potential red flag indicating that there may be fraudulent activities occurring within the organization. When senior management sets targets that are unattainable, it can create pressure on employees to engage in unethical or fraudulent behavior to meet these goals. This is one of the elements of the fraud triangle (pressure, opportunity, and rationalization) that can lead to fraudulent activities.

IIA Practice Guide: Fraud and Internal Audit

COSO Fraud Risk Management Guide