Comprehensive and Detailed Step-by-Step Explanation: Internalquality assurance (QA) reviewsare conducted toensure conformancewith professionalaudit standards and methodology. * Option A (Correct):The primary purpose of QA reviews is toconfirm that the internal audit function adheres to industry standards, such asISACA's IT audit frameworkand theInternational Standards for the Professional Practice of Internal Auditing (IPPF). * Option B (Incorrect):Whilegovernance and performance metricsare important,conformance to standardsis theprimary goalof QA reviews. * Option C (Incorrect):Risk management is part of audits, butQA reviews focus on adherence to methodologyrather than reducing audit risk. * Option D (Incorrect):Efficient resource usageis a goal butnot the main objectiveof an audit QA program. Reference:ISACA CISA Review Manual -Domain 1: Information Systems Auditing Process- Covers audit quality assurance and compliance with professional standards.