The best way for the auditor to address this issue is to verify management has approved a policy exception to accept the risk. A policy exception is a formal authorization that allows a deviation from the established policy requirements for a specific situation or period of time. A policy exception should be based on a risk assessment that evaluates the impact and likelihood of the potential threats and vulnerabilities, as well as the cost and benefit of the alternative controls. A policy exception should also be documented, approved, and monitored by management.
Recommending the application be patched to meet requirements is not the best way for the auditor to address this issue. Patching the application may not be feasible, cost-effective, or timely, given that the application will be decommissioned in three months. Patching the application may also introduce new risks or errors that could affect the functionality or performance of the application.
Informing the IT director of the policy noncompliance is not the best way for the auditor to address this issue.
Informing the IT director of the policy noncompliance may not resolve the issue or mitigate the risk, especially if the IT director is already aware of the situation and has decided to accept it. Informing the IT director of the policy noncompliance may also create unnecessary conflict or tension between the auditor and the auditee.
Taking no action since the application will be decommissioned in three months is not the best way for the auditor to address this issue. Taking no action may expose the organization to significant risks or consequences, such as data breaches, regulatory fines, or reputational damage, if the application is compromised or exploited by malicious actors. Taking no action may also violate the auditor's professional standards and responsibilities, such as due care, objectivity, and reporting.
References:
ISACA, CISA Review Manual, 27th Edition, 2019, p. 289
ISACA, CISA Review Questions, Answers & Explanations Database - 12 Month Subscription Cybersecurity Engineering for Legacy Systems: 6 Recommendations - SEI Blog How to Secure Your Company's Legacy Applications - iCorps

Honeypots can collect data on precursors of attacks. Since they serve no business function, honeypots are hosts that have no authorized users other than the honeypot administrators. All activity directed at them is considered suspicious. Attackers will scan and attack honeypots , giving administrators data on new trends and attack tools, particularly malicious code. However, honeypots are a supplement to, not a replacement for, properly securing networks, systems and applications. If honeypots are to be used by an organization, qualified incident handlers and intrusion detection analysts should manage them. The other choices do not provide indications of potential attacks.

Explanation/Reference:
Explanation:
Although biometrics provides only single-factor authentication, many consider it to be an excellent method for user authentication.