Comprehensive and Detailed Step-by-Step Explanation:
* Reference to IIA Standards:
* Standard 1120 - Individual Objectivity: Internal auditors should avoid situations that impair their ability to provide unbiased assurance.
* Practice Advisory 1130.A1-1: Objectivity is impaired if auditors audit activities they previously managed within the last 12 months.
* Reasoning:
* Option Ais correct because the auditor's recent role in the audited area creates a conflict of interest and threatens objectivity.
* Option Bdoes not impair objectivity; leveraging prior knowledge is permissible if applied objectively.
* Option C(consulting services two years prior) does not impair objectivity due to theelapsed time.
* Mitigating Actions:
* Auditors with recent involvement in an audited area should disclose the conflict and be reassigned to preserve objectivity.

Comprehensive and Detailed Step-by-Step Explanation:
* Resource Sufficiency: Ensuring that the internal audit team has sufficient staff with the appropriate expertise is the foundational step in resource planning for an engagement.

Comprehensive and Detailed Step-by-Step Explanation:
* Gathering Inputs for the Matrix: Interviews, walkthroughs, and questionnaires areprimary tools for gathering detailed insights into risks, controls, and processes. These activities provide the information necessary to populate a risk and control matrix effectively.

Comprehensive and Detailed Step-by-Step Explanation:
* Extent of Supervision: The level of supervision required is determined by the auditors' proficiency (experience and skill set) and the complexity of the engagement. This ensures the work is executed effectively while maintaining compliance with IIA standards.

Comprehensive and Detailed Step-by-Step Explanation:
* Reference to Embedded Audit Modules:
* Definition: Embedded audit modules are software components integrated into systems to monitor transactions in real-time or at regular intervals.
* They supportcontinuous auditingby flagging anomalies or predefined conditions.
* Reasoning:
* Option Ais correct because embedded audit modules facilitate continuous monitoring by evaluating transactions as they occur.
* Option Brelates to detecting unauthorized program code, a task better suited to software integrity checks or penetration testing.
* Option C(verifying account balances) is a manual or batch review task unrelated to embedded audit modules.
* Benefits of Embedded Audit Modules:
* Real-time insights into compliance, fraud detection, and operational inefficiencies.
* Enhance audit efficiency and effectiveness in high-transaction environments.