Which of the following is a legitimate requirement for an internal audit activity’s quality assurance...

The IIA standards specify that quality assurance and improvement programs (QAIP) must include both internal and external assessments. The internal assessments must be conducted continuously, and external assessments must be conducted at least once every five years, not seven. A key aspect of QAIP is that quality assessments should be performed by individuals who have sufficient knowledge of internal audit practices, ensuring the effectiveness and credibility of the audit process.

IIA Standard 1300: "Quality Assurance and Improvement Program"